| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 381123000 | SWITCHING | 88 |
| 20080219480 | Circuit for Priority Selection of Audio Signals - An audio selection circuit. The audio selection circuit includes a control/switch circuit having a first input, a second input, and a first output, and a signal detector module configured to detect an audio signal on the second input. If the signal detector detects presence of the audio signal on the second input, the signal detector is configured to transmit a control signal to the control/switch circuit, and the control/switch circuit is configured in response to the control signal to disconnect the first input from the first output and to connect the second input to the first output. Otherwise, the control/switch circuit is configured to connect the first input to the first output and to disconnect the second input from the first output. | 09-11-2008 |
| 20080226101 | Audio control system for a vehicle - An audio control system may receive a plurality of audio input signals. A switch or multiplexer may switch one of the plurality of audio input signals from respective audio sources to a power amplifier. A controller in communication with the multiplexer may control switching of the multiplexer. A display may provide the user with information regarding the switching of the audio signal inputs. A user interface may permit the user to manually switch the audio source. A signal detector in communication with an audio input signal may detect a signal from a priority source. When the signal from the priority source is detected, the controller may direct the multiplexer to route the signal from the priority source to the power amplifier. | 09-18-2008 |
| 20080260185 | Method And Apparatus For Automatically Detecting Audio Signal And Sending Control Signal - An apparatus and method for automatically detecting an audio signal and sending a control signal are provided. The present invention is for automatically detecting an audio signal from a conventional IC, and controlling the power amplifier of the driving speaker or the switch of other external circuit. The apparatus at least includes an audio detection circuit and a reset/delay circuit. The audio detection circuit is connected to an audio signal from a conventional IC to detect the presence of the audio signal. The reset/delay circuit, after receiving an output signal from the audio detection circuit, can either reset the reset/delay circuit, or send a control signal after delaying for a period of time. The apparatus of the present invention can also be integrated into the external circuit, such as a power amplifier, to simplify the control to the external circuit by the conventional IC so as to switch off the external circuit to save power when there is no presence of the audio signal. | 10-23-2008 |
| 20090052697 | Communication Device - A communication device includes a body and a sound receiving device. One end of the sound receiving device is pivotally connected to the body. The sound receiving device includes an omni-directional microphone and a uni-directional microphone. A processor has two modes for starting and operating the omni-directional microphone and the unidirectional microphone, respectively. An angle detecting element is located at the body to measure a rotary angle of the sound receiving device relative to the body, and then the processor switches to one of the two modes according to the rotary angle further to start the omni-directional microphone or the unidirectional microphone. | 02-26-2009 |
| 20090161891 | AUDIO SIGNAL HYBRID CONTROLLING DEVICE - An audio signal hybrid controlling device is provided. The audio signal hybrid controlling device is used for selecting an audio signal from a plurality of audio signals for an audio output device. The audio signal hybrid controlling device comprises: a USB input terminal for receiving a first audio signal; a portable music carrier receiving terminal for receiving a second audio signal; an audio signal output terminal for outputting an audio signal to the audio output device; and a switching unit for selecting one signal from the first and the second audio signals for the audio signal output terminal. | 06-25-2009 |
| 20090180645 | SYSTEM AND METHOD FOR DEPLOYING FILTERS FOR PROCESSING SIGNALS - A system, method and computer-readable medium are disclosed for using filters signal processing. The system includes a module that calculates a filter for each of a plurality of frequency bands, a module that groups the filters into a plurality of groups, a module that determines a representative filter for each group of the plurality of groups and a module that uses the representative filter of each group for frequency bands of the each group. The filters are temporal noise shaping filters (TNS) filters. | 07-16-2009 |
| 20090304208 | Body motion controlled audio playing device - A body motion controlled audio playing device is disposed with a sensing switch that can be covered in a non-contact way to selectively enable such functions as startup, shutdown, mute, and volume adjustment. | 12-10-2009 |
| 20100150380 | Interface connector and method of controlling the same - An interface connector and a method of controlling the same includes: an upper connector including a plurality of first terminals; a lower connector including a plurality of second terminals insulated from the plurality of first terminals. A determination unit determines which one of an earphone plug and an interface plug is connected to the interface connector through signals output from at least one of the plurality of first terminals and the plurality of second terminals. A switching unit switches signal lines from the plurality of first terminals. A controller controls the determination unit, the audio processor, the data processor, and the switching unit to perform a function corresponding to the connected one of the earphone plug and the interface plug, according to the determination result of the determination unit. | 06-17-2010 |
| 20100220875 | POP-UP NOISE SUPPRESSION IN AUDIO - Systems and methods for suppressing pop-up noise in an audio signal are disclosed. The system includes a driver circuit shared by a pin interface and a complementary pin interface. A control unit is coupled to the pin interface and the complementary pin interface. To activate the pin interface, the control unit is configured to first activate the driver output at the complementary pin interface. Once the complementary pin interface achieves a preset voltage, the driver output is switched to the pin interface by the control unit. In addition, the driver circuit can be calibrated for a DC offset on the complementary pin interface by re-using calibration data calculated at the pin interface. Further, DC correction signals can be provided from a pre-biasing circuit based on the calibration data of the driver circuit. | 09-02-2010 |
| 20100254550 | RECONFIGURABLE ACOUSTIC TRANSDUCER DEVICE - A device comprises: a first acoustic transducer; a second acoustic transducer; one or more transducer drivers; one or more signal receivers; and a transducer configuration device for selectively configuring connections between: (1) at least one of the first and second acoustic transducers; and (2) the one or more transducer drivers and the one or more signal receivers, according to a selected operating mode for the device among a plurality of possible operating modes. | 10-07-2010 |
| 20110002483 | Condenser Microphone - There is provided a condenser microphone that has improved portability and that can be realized at low costs. The condenser microphone includes, as all being accommodated within a cylindrical housing, a capacitor including a diaphragm electrode and a fixed electrode, a signal processing circuit board disposed at one opening of the cylindrical housing and having a converter circuit for converting a change in capacitance of the capacitor which has occurred in association with vibration of the diaphragm electrode into an electric signal and outputting this electric signal, a gate ring disposed between the capacitor and the signal processing circuit board for establishing electric conduction therebetween, a switch circuit board disposed at the other opening of the cylindrical housing and having a switch for controlling operation of the converter circuit, and a drain ring disposed between the switch circuit board and the signal processing circuit board for transmitting a switch signal according to an operation of the switch to the signal processing circuit board. | 01-06-2011 |
| 20110044478 | PORTABLE ELECTRONIC DEVICE AND AUDIO OUTPUT AND INPUT CONTROLLING METHOD THEREOF - A portable electronic device includes a housing including a first end and a second end opposite to the first end, a speaker unit including a first speaker near the first end of the housing and a second speaker near the second end of the housing, a microphone unit including a first microphone near the second end of the housing and a second microphone near the first end of the housing, and a controlling module set in the housing. The controlling module senses the orientations of the portable electronic device, and then controls corresponding speaker and microphone combination to output and input audio signals respectively. | 02-24-2011 |
| 20110058694 | Audio Signal Switching Apparatus - An audio signal switching apparatus at least comprises an audio jack, a speaker jack, a detection circuit and a control circuit. The audio jack and the speaker jack are separately configured in a computer system. The detection circuit detects whether the computer system is turned on or turned off. The control circuit is connected to the detection circuit and electrically connects the audio jack to the speaker jack when the computer system is turned off. | 03-10-2011 |
| 20110123050 | ADJUSTABLE ACCESSORY FOR A PORTABLE COMMUNICATION DEVICE - A user wearable accessory provides push-to-tall (PTT), microphone and adjustable electrical cord length features in a single device. First and second adjustable electrical cords couple a portable communication device to an earpiece. The accessory is formed of front and back housing portions coupled together to provide a spooling feature therebetween. The spooling feature accommodates the two electrical cords such that a user is able to wrap each cord to provide an overall desired length. Users of different heights can adjust the cord length as desired thereby minimizing tangling of the cords. | 05-26-2011 |
| 20110182445 | COMPUTER COMMUNICATIONS USING ACOUSTIC SIGNALS - A method of communicating with an electronic device. The method includes providing an electronic device having an audible sound receiving and generating sub-system including a microphone, transmitting from a source at least one acoustic signal encoded with information, receiving said at least one acoustic signal by said microphone and determining a spatial position, distance or movement of the microphone relative to the source, responsive to the received at least one signal. | 07-28-2011 |
| 20110235828 | MICROPHONE AND A SWITCH LOCKING DEVICE THEREOF - A microphone includes a grip and an audio pick-up unit mounted to one end of the grip. The microphone further includes a switch disposed in the grip and having an operable part that is movable relative to the grip between on and off positions. The microphone also includes a switch actuator movably disposed on the grip, coupled to the operable part of the switch, and manually operable to drive the operable part to move between the on and off positions. The microphone further includes a locking member movably disposed on the grip and manually operable for movement between a locking position and an unlocking position. | 09-29-2011 |
| 20110286612 | PHANTOM POWER CONTROLLED SWITCH - A switching operation is performed in response to an externally applied DC control signal from an external load. An input connector receives an input audio signal from an external audio source, and an output connector that provides an audio output signal. A DC isolator couples the input audio signal from the input connector as the audio output signal on the output connector while isolating the externally applied DC control signal from the input connector. A switch is responsive to the externally applied DC control signal applied to the output connector so as to perform the switch operation. | 11-24-2011 |
| 20110293117 | BOUNDARY MICROPHONE - A membrane pressure-sensitive switch includes a circuit board provided with an electrode pattern detecting electrical conductivity, a membrane having a conductive surface, and a spacer interposed between the membrane and the circuit board. The electrode pattern is surrounded by a ground pattern on the front surface of the circuit board. The ground pattern on the front surface is connected to another ground pattern on the rear surface of the circuit board. The spacer is composed of a conductive material. The conductive surface of the membrane, the ground pattern on the front surface of the circuit board, and the spacer are electrically conducted. The electrode pattern is disposed between the conductive surface of the membrane and the other ground pattern on the rear surface of the circuit board. | 12-01-2011 |
| 20120027233 | ELECTRONIC DEVICE AND TRANSMITTING METHODE THEREOF - An electronic device comprises a first output module, a judgment module, a first switch module, a second output module, an operation module, a second switch module and a play module. The first output module generates a first audio signal. The second output module generates second audio signals. If the first audio signal is generated, the judgment module generates a first control signal. The first switch module switches to the first state and transmits the first audio signal. If the first audio signal is not generated, the judgment module generates a second control signal. The operation module generates a selecting signal. The second switch module switches to a second audio signal according to the selecting signal and transmits to the first switch module. The first switch module switches to the second state and transmits the selected second audio signal. The play module plays the audio signal. | 02-02-2012 |
| 20120045077 | MICROPHONE DEVICE - Microphone ( | 02-23-2012 |
| 20120057727 | SELECTION DEVICE - A selection device includes an acquisition part to acquire digital selection signals, and an output part to output selection signals to respective unit cells, each unit cell capable of being commanded to output the value zero. In the selection device, each selection signal is to command the unit cell to output a value corresponding to that selection signal; the sum of the values to be output as commanded by the respective selection signals, which are output to the respective unit cells, is a value determined in association with the digital selection signal; and if the output corresponding to the digital selection signal is the value zero, then selection signals each commanding to output a non-zero value (N) are output to some of the unit cells. | 03-08-2012 |
| 20120134515 | APPARATUS AND METHOD OF CONTROLLING DRIVING OF POPUP TWEETER SPEAKER - A method of controlling driving of the pop-up tweeter speaker which includes (a) determining whether or not an opening of the tweeter speaker is normally completed and popping-down the tweeter speaker if it is determined that the opening is not normally completed, while popping-up the tweeter speaker based on a speaker control condition under an ON condition of an accessory (ACC) condition, (b) determining whether or not a close of the tweeter speaker is normally completed and popping-up the tweeter speaker if it is determined that the close is not normally completed, while popping-down the tweeter speaker based on an OFF condition of one of the speaker control condition and the ACC condition, and (c) maintaining a position state of the tweeter speaker until the speaker control condition or the ACC condition becomes an OFF condition when popping-down the tweeter speaker in (a) or popping-up the tweeter speaker in (b). | 05-31-2012 |
| 20120134516 | ENABLE AND DISABLE COMPARATOR VOLTAGE REFERENCE - This document discusses, among other things, systems and methods to reduce power use of an accessory detection device. The accessory detection device can be configured to be coupled to a mobile device having an audio jack configured to be coupled to a mobile device accessory having a send/end key. In an example, the accessory detection device can include a comparator and a switch. The comparator can be configured to receive mobile device accessory information from the mobile device accessory and to determine activation of the send/end key using the received mobile device accessory information. The switch can be configured to receive connection information indicative of mobile device accessory connection to the audio jack and to isolate a reference input of the comparator from a supply voltage using the connection information, for example, to reduce leakage current. | 05-31-2012 |
| 20120140958 | DRIVING CIRCUIT FOR A SOUND OUTPUTTING APPARATUS - A driving circuit for a sound outputting apparatus includes a H-bridge and a charge pump established by six switches for driving two types of loudspeakers, respectively. The six switches include two common switches to be configured in the H-bridge and the charge pump, thereby reducing the costs and circuit area of the driving circuit. | 06-07-2012 |
| 20120155677 | SOUND SIGNAL PROCESSING APPARATUS - A sound signal processing apparatus includes: a sound collector configured to collect a sound from an environment and configured to generate a sound collection signal; a signal controller configured to generate a sound signal based on the sound collection signal; a housing; a detector configured to detect a posture of the housing; and a selector configured to output one of the sound signal and a soundless signal based on the detected posture. | 06-21-2012 |
| 20120170775 | BEND SWITCH FOR WIRED HEADSET - This is directed to a bend switch constructed from two substantially co-linear elongated bodies having opposing contact surfaces. In an open switch position, the contact surfaces remain apart, preventing electrical coupling. To close the switch, a user can bend the elongated bodies relative to each other to cause the contact surfaces to meet, thus creating an electrical coupling. Each elongated body can have several independent conductive portions. The bend switch can include a movable space member placed between the elongated bodies to maintain the contact surfaces a predetermined distance apart in the open switch position. The movable space member can include preferred or non-preferred bending orientations, equilibrium positions, and/or a potentiometer for closing the switch. The bend switch can control one or more functions (e.g., microphone, volume, or playback controls) of an electronic device (e.g., portable media device or cellular telephone) coupled to the bend switch. | 07-05-2012 |
| 20120183160 | AUDIO APPARATUS - An audio apparatus includes: a connector that supports a multipolar plug including a plurality of plug terminals, the connector having a plurality of connector terminals including an input terminal of an audio collection section and an output terminal that outputs a noise canceling signal; a signal amplification section that amplifies a combined signal generated by combining the noise canceling signal and a reproduction audio signal, the signal amplification section being provided on an audio signal line that connects the input terminal and the output terminal; a detection section that detects whether the multipolar plug is inserted or pulled out by detecting change of voltage of a voltage supply line connected to the audio signal line; and a suppression section that suppresses output from the signal amplification section when the multipolar plug is pulled out but does not suppress the output when the multipolar plug is inserted. | 07-19-2012 |
| 20120189140 | AUDIO-SHARING NETWORK - Systems, methods, and devices for sharing ambient audio via an audio-sharing network are provided. By way of example, a system that receives shared audio from such an audio-sharing network may include a personal electronic device. The personal electronic device may join an audio-sharing network of other electronic devices and receive several audio streams from the audio-sharing network. Based at least partly on these audio streams, the personal electronic device may determine a digital user-personalized audio stream, outputting the digital user-personalized audio stream to a personal listening device. By way of example, the personal electronic device may represent a personal computer, a portable media player, or a portable phone. The personal listening device may represent a speaker of the personal electronic device, a wireless hearing aid, a wireless cochlear implant, a wired hearing aid, a wireless headset, or a wired headset, to name only a few examples. | 07-26-2012 |
| 20120189141 | DRIVER CIRCUIT - A pair of PWM signals having mutually opposite or identical phases is applied to both terminals of a load to drive the load. An anomaly detection circuit detects a state of change in the pair of PWM signals (PWM+ and PWM−), performs counting operation when at least one PWM signal stops changing, and outputs an anomaly detection signal when the count value becomes a predetermined value. | 07-26-2012 |
| 20120189142 | APPARATUS AND METHOD FOR SWITCHING MULTI-CHANNEL AUDIO IN A PORTABLE TERMINAL - A multi-channel audio switching method and device for terminal sets correspondence between output audio types and audio output modules, and sets output levels for the different audio output modules. When the portable terminal receives an instruction to output an audio, the instruction carries an output audio type. The portable terminal determines an audio output module corresponding to the output audio type and an output level according to the correspondence, and determines, which audio output module has an output level not higher than the determined output level, and whether there are idle audio output modules among the found out audio output modules; if yes, the portable terminal outputs the audio through the currently highest level idle audio output module among the found out audio output modules; if not, the portable terminal determines and instructs one audio output module to output the audio according to the determined output level. | 07-26-2012 |
| 20120201402 | CONTROL DEVICE, SOUND SWITCHING METHOD OF CONTROL DEVICE, AND PROGRAM - A control device may include a control unit to switch an output information to a predetermined output information, when a transition of contents of a controlled device is detected. | 08-09-2012 |
| 20120224724 | SYSTEMS AND METHODS FOR HIGH PASS FILTERING WITH SMART SATURATION - An audio processing system that includes an audio filter having one or more elements capable of having state, such as a capacitor, an inductor or a delay. A saturation detector is configured to detect saturation of the audio filter and to generate an output when saturation of the filter is detected, such as a switch control signal. A switch is connected to the audio filter and the saturation detector, wherein the state of one or more of the elements of the audio filter is changed when the saturation detector provides the output to the switch, such as when the switch shorts the element and causes the energy stored in the element to be dissipated. | 09-06-2012 |
| 20120224725 | DUAL WIRELESS/OPTICAL AUDIO SWITCH - A dual wireless/optical audio switch system comprised of a set of optical input ports for home gaming systems, television, video streaming devices, a user selection panel, a signal routing circuit, two radio frequency transceiver units, a touch controller unit, a USB power control unit, a wireless remote, a wireless USB soundcard, and wireless headset. The system allows for the user to have multiple optical audio outputs from electronic devices connected to its inputs as well as receive wireless streaming audio from a wireless USB soundcard that is also able to wirelessly stream audio to a headset. Through user selection from the system front touch panel or wireless remote, the audio signal of choice is multiplexed to a single optical output port to be connected to a home entertainment receiver. | 09-06-2012 |
| 20120230520 | METHOD AND APPARATUS FOR OUTPUTTING AUDIO SIGNAL - An audio signal outputting apparatus and method for adjusting an output gain of an audio signal are provided. The audio signal outputting apparatus includes: a pulse width modulation (PWM) unit which generates a carrier signal, compares a signal level of the carrier signal with a signal level of an audio signal, and generates a PWM signal based on a result of the comparison; a controller which, based to a level of the audio signal, controls the PWM unit to change a signal shape of the carrier signal to adjust a duration of a logic high level of the PWM signal; and a switching power unit which amplifies the PWM signal generated by the PWM unit and outputs the amplified PWM signal. | 09-13-2012 |
| 20120243712 | SWITCH AND SWITCH CIRCUIT USING THE SAME - A fourth n-channel MOSFET has a source terminal and a back-gate terminal connected to each other. A switch element is connected between the source terminal of the fourth n-channel MOSFET and a ground potential, and the source terminal of the fourth n-channel MOSFET is made become the ground potential when the fourth n-channel MOSFET is OFF. A protection circuit is provided between a connection node of the source terminal of the fourth n-channel MOSFET and an input terminal of the switch element, and the ground potential so that a negative inflow current from the drain terminal of the fourth n-channel MOSFET caused by electrostatic discharge flows to the ground potential. | 09-27-2012 |
| 20120288123 | POWER SAVING SYSTEM AND METHOD FOR LOUDSPEAKER - A power saving system includes a sensor, a processor, a timer, and a switch. The sensor senses movements in the diaphragm of the loudspeaker. The processor determines whether the loudspeaker is power-on and in use or power-on but not in use. The processor further determines whether a preset period of time has elapsed since the indication of power-on but not in use was first given. If the preset period of time has elapsed, the processor further controls the switch to disconnect the power source from the loudspeaker. | 11-15-2012 |
| 20120328130 | Parameter Controlling Apparatus - A parameter controlling apparatus has a CPU | 12-27-2012 |
| 20130010986 | Audio Jack System - An audio jack system includes a special audio jack adaptor that is particularly useful for digital players (e.g., cell phone, smartphone, MP3 player, computer, etc.) housed within watertight enclosures. When a headset is plugged directly into the digital player, the player's audio signal automatically goes to the headset, and the digital player's onboard speaker is silent. When nothing is plugged into the digital player, the audio signal automatically goes to the player's onboard speaker. When just the special adaptor is plugged into the player, the audio signal still goes to the onboard speaker; however, subsequently plugging the headset into the plugged-in special adaptor redirects the audio signal to the headset and not to the onboard speaker. To accomplish such results, a plug end of the adaptor includes a split-ring or split-tip set of open contacts that effectively close upon plugging the headset into a receptacle end of the adaptor. | 01-10-2013 |
| 20130028449 | Method and Apparatus for Switching Audio Channels of Communication Module - An apparatus and a method for switching audio channels of a communication module are disclosed by the disclosure, wherein the method comprises the following steps of: establishing one-to-one corresponding audio channels for signal type combinations of all audio interfaces of the communication module; receiving external audio channel switching instructions, and selecting the audio channels which are to be switched according to the audio channel switching instructions; and switching the selected audio channels, which are to be switched, to the corresponding audio interfaces of the communication module. With the disclosure, the communication module can be adapted to various signal type combinations of different products, i.e., the communication module can select appropriate audio channels according to audio input/output types of different products, thus the applicability of the communication module is improved enormously. | 01-31-2013 |
| 20130051584 | DEVICE CONTROL APPARATUS, DEVICE CONTROL METHOD, AND PROGRAM - There is provided a device control apparatus including a wearing information detection section which detects wearing information of a sound output apparatus, and an output control section which switches an output destination of an input sound between the sound output apparatus and another sound output apparatus in accordance with a detection result obtained by the wearing information detection section. | 02-28-2013 |
| 20130101141 | DIRECTIONAL AUDIO ARRAY APPARATUS AND SYSTEM - A directional transducer array system comprising a plurality of transducers with mathematical sequence spacing mounted on an array tile or host device. In an embodiment, the invention allows the construction of a receiving or transmitting, tiled (modular) directional audio array while simultaneously retaining desirable directional characteristics, improving gain, and limiting negative impacts on side lobe attenuation as the array is scaled (i.e. identical or similar tiles are added to or subtracted from the array); and allows the construction of a receiving or transmitting directional audio array that is light weight and robust enough to be used in body-worn, body-carried, vehicular, and fixed installations. | 04-25-2013 |
| 20130101142 | SETTING TELEVISION OR RADIO DEFAULT CHANNEL - In some embodiments, a media device is configured so that it automatically causes a first predetermined channel to be displayed on an output device when a user sends a request signal to the media device to turn the output device off. The media device may be configured so that it causes the output device to shut off after the first predetermined channel has been on for a dwell period of time after the request signal has been received. The dwell period of time may be approximately two seconds. In some embodiments, a media device is configured so that it automatically causes a first predetermined channel to be displayed on an output device when a user sends a request signal to the media device to turn the output device on. In some embodiments, the media device is a television device. In other embodiments, the media device is a radio device. | 04-25-2013 |
| 20130177176 | SYSTEM FOR WIRELESS SWITCHING AND CONTROLLING OF AUDIO SIGNALS AS RELATED TO MUSICAL AUDIO APPLICATIONS SUCH AS AUDIO EFFECTS, EFFECTS PEDALS, PEDALBOARDS, MIXERS, AND STUDIO EQUIPMENT - A system for wireless control of audio signal switching. The system includes a wireless transmitter having a physically actuated switch, and a main unit. The main unit includes a wireless receiver and one or more relays which may switch the path of the audio signal or provide remote control of external devices, in response to input at the physically actuated switch. | 07-11-2013 |
| 20130177177 | APPARATUS AND METHOD FOR DETECTING A ROCKING MOVEMENT OF AN ELECTRONIC DEVICE AND EXECUTE A FUNCTION IN RESPONSE TO THE DETECTED MOVEMENT - An apparatus, method and computer program wherein the apparatus comprises: a housing comprising a convex portion configured to enable the apparatus to rock in response to an impulse provided by a user; and a processor configured to enable a function of the apparatus to be performed in response to the detection of the rocking of the apparatus. | 07-11-2013 |
| 20130259269 | BUTTON-PRESS DETECTION AND FILTERING - The disclosure provides a button-press detection and filtering method, related circuit, and button-press detection chip for a external device. A button-press signal from a wire control apparatus is coupled to the button-press detection chip for the external device. The button-press detection chip for the external device can digitally sample the button-press signal through the filter circuit and outputs a digital logic signal corresponding to a button to an audio codec according to the sampling result. The audio codec can determine a pressed button according to the digital logic signal and performs a corresponding function. With the solutions of the disclosure, a noise interference signal in a button-press signal may be avoided and a pressed button may be accurately detected, without using a dedicated chip or complex software codes in a wire control apparatus and an electronic device. | 10-03-2013 |
| 20130279721 | BIASING CIRCUIT FOR A MICROELECTROMECHANICAL ACOUSTIC TRANSDUCER AND RELATED BIASING METHOD - A biasing circuit for an acoustic transducer is provided with: a voltage-booster stage, which supplies, on a biasing terminal, a boosted voltage for biasing a first terminal of the acoustic transducer; and filtering elements, set between the biasing terminal and the acoustic transducer, for filtering disturbances on the boosted voltage. The biasing circuit is further provided with switches, which can be actuated so as to connect the first terminal to the biasing terminal of the voltage-booster stage, directly during a start-up step of the biasing circuit, and through the filtering elements at the end of the start-up step. | 10-24-2013 |
| 20130308797 | Multi-Membrane Microphone for High-Amplitude Audio Capture - Disclosed herein are apparatus, method, and computer program product whereby a device receives an acoustic signal. In response to the received acoustic signal, the device outputs electrical signals from a first input audio transducer and a second input audio transducer. The second input audio transducer is less sensitive than the first input audio transducer. | 11-21-2013 |
| 20130315421 | COMBO-JACK DETECTING CIRCUIT - A combo-jack detecting circuit for used in an audio CODEC is provided. The combo-jack detecting circuit comprises a low pass filter, a detecting unit and a switch unit. Without coupling capacitor between an audio apparatus and audio codec, the output direct current voltage of the audio apparatus can be provided by the low pass filter. The switch unit is configured to switch selectively for outputting two voltage signals to the low pass filter sequentially. The low pass filter provides two direct current signals so that the detecting unit determines a jack type of the sounding signal apparatus accordingly. By means of proper design, input buffers in the audio codec can transform a common mode voltage of the audio apparatus into a common mode voltage of the audio codec. | 11-28-2013 |
| 20130329917 | PORTABLE ELECTRONIC DEVICE HAVING UNIVERSAL EARPHONE JACK - A portable electronic device includes an earphone jack for receiving an earphone plug, a switch unit and a signal processing unit. The switch circuit operates in a first mode, a second mode, and a third mode. The signal processing unit identifies a type of the earphone plug and controls the switch unit to switch to the first mode, the second mode, or the third mode according to the type of the earphone plug. | 12-12-2013 |
| 20130343578 | ELECTRONIC APPARATUS - According to one embodiment, an electronic apparatus includes a speaker, a receiver, a switch, a detector, and a controller. The receiver is configured to receive an audio signal from an external device. The switch is configured to switch between a first path by which the speaker is connected to a sound controller and a second path by which the receiver and the speaker are connected to each other without the sound controller. The sound controller is configured to operate when the electronic apparatus is in an operative state. The state detector is configured to detect a first state where the receiver receives the input of the audio signal from the external device. Lastly, the controller is configured to cause the switch to switch from the first path to the second path, when the first state is detected by the state detector in a non-operative state of the electronic apparatus. | 12-26-2013 |
| 20140029770 | HYBRID ANALOG/DIGITAL HEADSET - A device comprising a detector configured to receive an indication from a terminal of a connector and to determine whether the indication matches an expected result. One or more first switches are configured to connect one or more speaker transducers to the connector if the indication is false. One or more second switches are configured to connect the one or more speaker transducers to a digital output converter if the indication is true. The device can also include one or more third switches configured to connect one or more microphone elements to the connector if the indication is false, and one or more fourth switches configured to connect one or more microphones to a digital input converter if the indication is true. The input and output converters can be stand alone or part of a digital signal processor. | 01-30-2014 |
| 20140029771 | MULTIPLE INPUT AUDIO SWITCH - A system and method for switching between multiple audio input signals to select one of the audio input signals as audio output signal are disclosed which include receiving the audio input signals, receiving a control signal, and switching controlled by the control signal from a first one of the audio input signals to a second one of the audio input signals. Prior to switching, the first one of the audio input signals is muted and upon switching, the second one of the audio input signals is unmuted in one of multiple unmute modes based on one or more signal parameters characterizing the second one of the audio input signals. | 01-30-2014 |
| 20140072147 | PRESS BUTTON DEVICE AND AUDIO EQUIPMENT HAVING THE PRESS BUTTON DEVICE - A press button device includes a button unit having a main body with a surrounding wall, and an actuating member protruding from an inner side of the main body for actuating a control switch. A flexible connection unit includes a button-coupling portion connected to the surrounding wall in an airtight manner, a fixed portion radially spaced apart from and surrounding the button-coupling portion, and a deformable portion interconnecting the button-coupling and fixed portions. The deformable portion is elastically displaced relative to the fixed portion when the button unit is pressed, and restores the button unit to its original position when the pressing force thereon is removed. | 03-13-2014 |
| 20140079250 | INFORMATION DEVICE FOR MOVING OBJECT - An information device for a moving object includes a display panel that is openable and closable via a rotating shaft of hinges, storing holes passing through the display panel, and a holding mechanism provided in the storing holes and holding stored devices fitted and stored in the storing holes. | 03-20-2014 |
| 20140098977 | REDUCING A DISTURBANCE ON A SIGNAL PATH OF A SEMICONDUCTOR SWITCH - A method for reducing a disturbance on a signal path is provided. The disturbance is caused by a capacitance of a semiconductor switch ( | 04-10-2014 |
| 20140169590 | SYSTEM FOR BLENDING SIGNALS - A time modification system is disclosed. The time modification module includes a delay module for receiving an input signal comprising a series of digital samples at an input sample rate. The delay module provides a delayed output signal. The time modification module further includes a duration modification module for receiving the input signal or a delayed version thereof, and providing a modified output signal. A first switch is included for selecting either the delayed output signal or the modified output signal. | 06-19-2014 |
| 20140169591 | Digital Switching Signal Sequence for Switching Purposes, Apparatus for Including Said Digital Switching Signal Sequence in a Digital Audio Information Signal, and Apparatus for Receiving the Information Signal Provided With the Switching Signal Sequence - A digital switching signal sequence is realized as a previously digitized, high-pass filtered white noise signal of a predetermined length T, with a high-pass cut-off frequency which lies above the frequency where the loudness threshold characteristic in silence of the human hearing has its highest sensitivity, if possible. The switching signal sequence is employed for switching purposes ( | 06-19-2014 |
| 20140177878 | INTERFACE SWITCHING SYSTEM AND METHOD FOR SWITCHING OPERATION MODE - The present invention discloses an interface switching system including an electronic device, wherein the electronic device includes an audio socket, a first set of interface lines, a set of audio interface lines, a first switching device, an interface socket and a processor. The audio socket is arranged to be coupled to an audio plug. The first switching device is arranged to couple the audio socket to the first set of interface lines or the set of audio interface lines. The interface socket is arranged to be coupled to a first interface plug or a second interface plug. The processor is arranged to enable the first switching device to couple the audio socket to the first set of interface lines when the interface socket is coupled to the second interface plug. | 06-26-2014 |
| 20140193003 | PARASITIC ISOLATION COMMUNICATION SWITCH - This document discusses, among other things, a switch multiplexer having a common connector, the switch multiplexer including a first switch configured to receive a first signal at or above a ground (GND) reference and a second switch configured to receive a second signal that swings positive and negative about ground. The switch multiplexer includes a negative charge pump configured to bias the first switch with a negative charge pump voltage lower than the most negative voltage swing of the second signal when the second switch is enabled, and to bias the first switch with GND when the first switch is enabled. | 07-10-2014 |
| 20140193004 | EFFECT APPLYING APPARATUS AND EFFECT APPLYING METHOD - When a knob is at a center position, transmission levels of first volumes on a path from a second effector to a first effector, and second volumes on a path from the first effector to the second effector are both zero, and the first effector and the second effector operate independently. When the knob is displaced to right side from the center position, the transmission level of the second volumes is controlled according to the displacement amount, but the transmission level of the first volumes stays at zero. Thus, the second effector is connected in series to the first effector. When the knob is displaced to left side from the center position, the transmission level of the first volumes is controlled according to the displacement amount, but the transmission level of the second volumes stays at zero. Thus, the first effector is connected in series to the second effector. | 07-10-2014 |
| 20140254838 | METHOD AND APPARATUS FOR CONTROLLING AUDIO OUTPUT OF COMMUNICATION TERMINAL - An apparatus for controlling an audio output in a terminal includes: a speaker; an audio processor which demodulates an audio signal via a first path and a second path having different impedances from each other, the audio processor selectively transmits the demodulated audio signal to the speaker via one of the first path and the second path; and a controller which determines an audio output mode and controls a path selection of the audio processor according to the determined audio output mode. | 09-11-2014 |
| 20140270266 | WIRELESS SWITCHING OF EFFECTS PEDALS WITH STATUS UPDATES - A system for wireless control of audio signal switching. The system includes a remote unit, having a physically actuated switch and a remote unit status indicator, and a main unit. The main unit includes a main unit transceiver and one or more relays which may switch the path of the audio signal or provide remote control of external devices, in response to input at the physically actuated switch. The main unit may send status updates to the remote unit, allowing the remote unit to display the current state of the main unit to a user at the remote unit. | 09-18-2014 |
| 20140270267 | System, Method and Apparatus for Silent True Bypass Switching - A system, method and apparatus in the field of signal processing with particular applications to the specialized field of audio signal processing as it is used in the production or performance of music that is adapted and/or configured to mitigate or attenuate unwanted signals during a switching process between an effects apparatus and a signal bypass. | 09-18-2014 |
| 20140321673 | METHOD AND APPARATUS FOR CONTROLLING A SOUND INPUT PATH - A method and apparatus for controlling a sound input path in an electronic device. The method includes detecting a connection of an earphone device to an earphone interface; detecting a sound input through an earphone microphone, when detecting the connection of the earphone device. The earphone microphone is selected as a sound input device, when detecting the sound input through the earphone microphone. A built-in microphone of the electronic device is selected when the sound input through the earphone microphone is not detected | 10-30-2014 |
| 20140363031 | Analog Input Module - An analog input module includes an activation unit, an analog/digital converter, an input circuit with a first input and a second input and a voltage divider disposed between the first input and the second input. The activation unit is connected to the first input and the second input and is connected upstream of the analog/digital converter. The voltage divider has center tap which is connected to a first comparator input of a comparator of a closed-loop control unit. The closed-loop control unit has a switching device disposed between the second input and a reference point. The comparator includes a second comparator input which is connected to a reference source. The comparator has a control output which is connected to a control input of the switching device. The closed-loop control unit is configured such that the switching device enables or disables a current path to the reference point. | 12-11-2014 |
| 20140376750 | HANDSET MICROPHONE - A handset microphone includes: a microphone unit, a first switch for turning on or off the output from the microphone unit, and a second switch for enabling or disabling the output from the microphone unit; the first and second switches have contacts operated by a magnetic field; the contact of the first switch is closed and short-circuits the output terminals while the first switch is being affected by the magnetic field; and the contact of the second switch is opened and disconnects one of the output terminals while the second switch is being affected by the magnetic field. | 12-25-2014 |
| 20150016637 | METHOD AND APPARATUS TO COUPLE AN AUDIO SOURCE TO A LEGACY AUDIO SYSTEM - An audio system including a legacy radio system having a radio and a set of speakers, and an audio selection system electrically coupled between the radio and the set of speakers. The audio selection system is configured to detect a signal containing audio information, with the signal not coming from the radio. The audio selection system is further configured to electrically disconnect the set of speakers from the radio and to route the audio information to the set of speakers upon detection of the signal. | 01-15-2015 |
| 20150049885 | PAIRWISE AUDIO CAPTURE DEVICE SELECTION - Embodiments disclosed herein provide systems and methods for pairwise audio capture device selection. In a particular embodiment, a method provides capturing audio information via a plurality of audio capture device pairs, wherein each audio capture device pair comprises a first audio capture device and a second audio capture device. Based on the audio information, the method provides determining a difference in audio energy between audio captured by the first and second audio capture devices for each of the plurality of audio capture device pairs. The method further provides selecting an audio capture device pair of the plurality of audio capture device pairs based on the audio capture device pair having the largest difference in audio energy. | 02-19-2015 |
| 20150055806 | AUDIO ADJUSTMENT CIRCUIT AND ELECTRONIC DEVICE USING SAME - An electronic device includes a power supply, an adjustment circuit, and an audio outputting module. The power supply provides a working voltage. The adjustment circuit includes a control unit, a switch unit, and an adjustment unit. The control unit comprises a first pin and a second pin for outputting a first control signal or a second control signal respectively. When received first control signal from the control unit, the switch unit establishes a connection between the power supply and the adjustment unit, and the adjustment unit generates different driving voltages based on different combination of the first control signal and the second control signal outputted by the first pin and the second pin. The audio outputting module generates different tone frequencies based on different driving voltage. | 02-26-2015 |
| 20150086045 | Smart Line-In Processing in a Group - Technology for smart line-in processing in an audio environment is disclosed. An example playback device includes a line-in connector for receiving a first audio signal, a network interface, and a processor. A computer readable storage medium has stored instructions executable by the processor to determine that the first audio signal is present at the line-in connector, and, in response to determining that the first audio signal is present at the line-in connector, (i) cease playback of a second audio signal being played by the playback device, wherein the second audio signal is not present at the line-in connector, (ii) cause the playback device to play at least a first portion of the first audio signal, and (iii) cause the playback device to transmit, via the network interface, at least a second portion of the first audio signal to another playback device. | 03-26-2015 |
| 20150098591 | PORTABLE ELECTRONIC DEVICE CONTROL - Electronic devices such as compact portable media players are provided. A housing for an electronic device may be relatively compact. The housing may include a door assembly with an attached spring-loaded clip. The electronic device may include a hold switch. Depending on the state of the hold switch, the electronic device may be in an off mode, a continuous playback mode, or a shuffle playback mode. The electronic device may not have integrated media playback controls such as play, pause, rewind, fast forward, etc. As one example, the electronic device may connect to an accessory that has media playback controls. Buttons and other user interfaces may be included in the accessory and user input information may be conveyed between the accessory and the electronic device using a wired path including audio connectors. The electronic device may include a printed circuit board assembly that is nested together with a battery assembly. | 04-09-2015 |
| 20150117677 | ADAPTIVE METHOD AND DEVICE OF AUDIO INTERFACE AND ELECTRONIC SIGNATURE TOKEN - An adaptive method and device of an audio interface and an electronic signature token are provided. The audio interface comprises a first pin and a second pin, and the method comprises: not implementing an identification operation on the first pin and the second pin of the audio interface when an absolute value of a voltage difference between the first pin and the second pin is less than a first threshold; determining a type of each of the first pin and the second pin according to a sign of the voltage difference between the first pin and the second pin when the absolute value of the voltage difference is greater than or equal to a second threshold, in which the second threshold is greater than or equal to the first threshold; and connecting the identified ground pin to a common ground. | 04-30-2015 |
| 20150125005 | AUDIO INTERFACE SELF-ADAPTATION DEVICE - An audio interface self-adaption device includes an audio interface, a first level comparison module, a second level comparison module, a PNP triode Tc, a power output terminal VBAT, a switching module, a resistor R | 05-07-2015 |
| 20150125006 | AUDIO CONTROL CIRCUIT - An audio control circuit receives analog audio signals and digital audio signals via an audio signal input interface. The audio control circuit includes an audio codec chip, a first control circuit, a first switch circuit, a second control circuit, and a second switch circuit. The first control circuit obtains the analog audio signals from the audio signal input interface and converts the analog audio signals into first control signals to control the first switch circuit turned on and off. The second control circuit obtains the digital audio signals from the audio signal input interface and converts the digital audio signals into second control signals to control the second switch circuit turned on and off. The audio codec chip receives the analog audio signals in response to the first switch turned on and receives the digital audio signals in response to the second switch turned on. | 05-07-2015 |
| 20150131814 | METHOD AND SYSTEM FOR CONTACT SENSING USING COHERENCE ANALYSIS - Herein provided is a method for acoustical switching suitable for use with a microphone enabled electronic device. The method includes capturing a first microphone signal from a first microphone on a device, analyzing the first microphone signal for a contact event versus a non-contact event, and directing the electronic device to switch a processing state responsive to detection of either the contact event or non-contact event. In another configuration, additional microphone can be added for performing coherence analysis between at least two microphone signals mounted on or in the device. At least one parameter settings of the device can be changed in response to at least one detected physical contact on the device. Other embodiments are disclosed. | 05-14-2015 |
| 20150131815 | METHOD AND APPARATUS FOR PROCESSING A SWITCHED AUDIO SIGNAL FROM A CROSSPOINT ROUTER - Apparatus is provided for processing a switched audio signal output received from a crosspoint router having a plurality of inputs and a plurality of outputs, there being a control signal that defines which of the plurality of inputs is to be routed by the crosspoint router to which of the plurality of outputs. A control unit receives the control signal and serves to identify a route change in the control signal. An instantaneous value of the switched audio signal prior to the route change is stored. A signal processing unit then combines the stored value with values of the switched audio signal after the route change to form a processed audio signal that changes smoothly. | 05-14-2015 |
| 20150304769 | METHOD AND DEVICE FOR RECOGNITION AND ARBITRATION OF AN INPUT CONNECTION - Embodiments herein enable fast and easy interconnectivity among multimedia accessories including mobile devices and other devices. There is only limited space on mobile devices yet there are numerous input connectors. The standard TRRS audio jack is one such input that has and remains common, primarily because it is the accepted standard for audio input; namely, headphones and earpieces for listening purposes. Embodiments herein describe an intelligent switch to that audio jack that permits for additional backward and forward compatibility. It transparently allows a user to insert analog or digital audio devices, such as earphones, without the need to manually reconfigure device settings. The device herein automatically converts between input connector types using the same input convention present on their existing mobile devices. Other embodiments are disclosed. | 10-22-2015 |
| 20150318854 | PROPORTIONAL FEEDBACK FOR REDUCED OVERSHOOT AND UNDERSTOOT IN A SWITCHED OUTPUT - Embodiments of apparatuses and methods for proportional feedback for reduced overshoot and undershoot in a switched output are described. An embodiment of an apparatus includes a switching output stage configured to receive an input signal and provide a responsive output signal. The apparatus may also include a pulling circuit coupled to one of the first switching device and the second switching device. The pulling circuit may pull a control voltage of power transistors in the switching output stage to reduce impedance of at least one of the transistors in response to a determination that the output signal at the common output node is outside of a predetermined range of a threshold value. Pulling strength may increase as a voltage difference between the output signal and one of the first supply voltage and the second supply voltage increases. | 11-05-2015 |
| 20150326970 | AUDIO JACK INSERTION/REMOVAL FAULT DETECTION - This document discusses, among other things, circuits and methods for providing an indication of an impedance between a detecting pin and a first signal pin of an audio socket using first and second comparators to, among other things, determine if moisture is present in the audio socket. If moisture is present in the audio socket, communication between an audio processing unit and the audio socket can be disabled. | 11-12-2015 |
| 20160021456 | SINGLE KNOB CONTROLLER - A single knob for controlling at least an audio input signal to produce up to fourteen distinct results, plus one quiescent state, through axial translational states corresponding to: the knob being translationally biased out, pushed in, or pushed in and held; and rotational states corresponding to: rotationally biased to a first position, turned clockwise, turned clockwise and held, turned counterclockwise, and turned clockwise and held, and combinations of those translational and rotational states. The single knob controller can be linked to a Bluetooth device for controlling such device. Some applications include automotive electronics and audio systems generally. | 01-21-2016 |
| 20160041808 | ADAPTABLE AUDIO SYSTEMS - Sound-producing devices such as headphone sets or loudspeakers are disclosed that can removably mate with an external interface. The external interface may plug into a port on an exterior of the sound-producing device. The external interface includes conversion circuitry that is powered by a power source in the sound-producing device. The external interface receives a first audio-encoded signal from a source device such as a mobile phone, tablet computer, or the like, and converts such signal to a conditioned signal which is compatible with the sound-producing device. Connection between the source device and the external interface may be a first type of wired or wireless connection. The sound-producing device may operate with other source devices that produce different audio-encoded signals by replacing the external interface with a different external interface whose conversion circuitry converts the different audio-encoded signal to the same conditioned signal. Alternative sound-producing devices are also disclosed. | 02-11-2016 |
| 20160056771 | SWITCHING CIRCUIT - A switching circuit generates a switching pulse that is pulse modulated according to an input signal. An error amplifier includes a phase compensating filter that generates a feedback signal corresponding to the switching pulse. The error amplifier generates an error signal corresponding to a difference between the input signal and the feedback signal. A pulse modulator includes an oscillator that generates a carrier signal having a variable frequency. The pulse modulator pulse-modulates the carrier signal according to the error signal, so as to generate a pulse modulated signal. The phase compensating filter is configured such that its frequency characteristics can be adjusted according to the frequency of the carrier signal. | 02-25-2016 |
| 20160066084 | LOUDSPEAKER AUDIO ACCESSORY FOR A COMMUNICATION DEVICE - A loudspeaker audio accessory provides and non-cable interface to a portable radio. The accessory can operate in conjunction with the radio or as a standalone device. An accessory loudspeaker is contained within the accessory housing, the accessory loudspeaker being positioned at a tilted angle within the housing to direct audio upwards towards audio porting located on a top surface of the accessory housing. The accessory provides a plurality of operational modes, the first mode of operation being a stand-alone mode generating an emergency alert audio tone via the loudspeaker in response to a switch being enabled; and the second mode of operation provides boosted audio via the accessory loudspeaker when the accessory is coupled to a radio. The accessory can also operate in conjunction with the radio via a short range link to selectively emergency signals and boosted audio. | 03-03-2016 |
| 20160094913 | AUDIO TRANSMISSION SYSTEM - An audio transmission system includes a plug, a control circuit coupled to the plug, an output interface coupled to the control circuit, and an input interface coupled to the control circuit. The plug is configured to couple to an audio interface of an electronic device. The audio interface is configured to input and output audio signals. The control circuit is configured to control the output audio signals and the input audio signals. The audio signals from the audio interface are output externally via the output interface. External audio signals are input to the audio interface via the input interface. | 03-31-2016 |
| 20160098242 | MOTHERBOARD FOR A COMPUTER SYSTEM AND A COMPUTER SYSTEM - A motherboard for a computer system that electrically connected to an acoustic transmitter that outputs acoustic signals includes a first sound generator circuit configured to generate a first control signal for the acoustic transmitter; a second sound generator circuit configured to generate a second control signal for the acoustic transmitter; and a logic circuit electrically coupled to the first sound generator circuit via a first signal line and to the second sound generator circuit via a second signal line and configured to transfer the first control signal or the second control signal to the acoustic transmitter. | 04-07-2016 |
| 20160134966 | REDUCED MICROPHONE POWER-UP LATENCY - A method includes generating a command at a first microphone and sending the command from the first microphone to a second microphone. The command is sent to the second microphone via a bus that is coupled to the first microphone and to the second microphone. | 05-12-2016 |
| 20160150323 | Piezoelectric Bone Conduction Receiver And Portable Electronic Device - A piezoelectric bone conduction receiver and a portable electronic device are disclosed. The piezoelectric bone conduction receiver comprises: a piezoelectric bone conduction receiver driving unit functioning as an acoustic vibration element, a piezoelectric driving and signal processing circuit connected with the piezoelectric bone conduction receiver driving unit, and a driving signal switching module, wherein the piezoelectric bone conduction receiver driving unit comprises at least two piezoelectric bone conduction receiver driving modules which can be independently driven in operation, the at least two piezoelectric bone conduction receiver driving modules are connected to the driving signal switching module which is connected with the piezoelectric driving and signal processing circuit, and the driving signal switching module is configured to control phases of piezoelectric driving signals output by the piezoelectric driving and signal processing circuit to the piezoelectric bone conduction receiver driving modules, so that the phases of the piezoelectric driving signals received by the piezoelectric bone conduction receiver driving modules are same or opposite. | 05-26-2016 |
| 20160173980 | SOLID STATE RELAY CIRCUIT ARRANGEMENT FOR AUDIO SIGNALS AND SWITCHING SYSTEM | 06-16-2016 |
