| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 381082000 | Public address system | 32 |
| 20080199022 | Changing time intervals of the occurence of audio information from local and remote sites - A method of processing audio information for broadcast to an audience can include changing first audio information from occurring in a first time interval to occurring in a second time interval to provide time-changed audio information. The time-changed audio information can be combined with second audio information that is responsive to the first audio information to provide broadcast audio information. | 08-21-2008 |
| 20090060221 | Computer installed stereo PA amplifier card - The present invention is a stereo PA amplifier that is mounted inside a desktop computer. It is powered by the computer's 12-volt power supply and receives its input via a stereo mini cable from the computer's audio line out. Standard 8-ohm, non-powered speakers are then hooked up directly to the board via its speaker connector board. The volume of the present invention is adjusted by the computer's volume controls. The device eliminates the need for an external stereo amp and external mixer, which thereby reduces the installation time, cost, interconnecting cables, and the space needed for the overall computer system, while at the same time providing quality sound. | 03-05-2009 |
| 20090092263 | Systems and Methods for Delivering Directional Audio and Personalized Emergency Alerts Via Addressable Speakers - A public address system installed in a building or other region being monitored can communicate with a regional fire detection system. Responsive to information received from the fire detection system as to developing dangerous conditions, a control unit for the public address system can adaptively create one or more evacuation routes for a region associated with a developing condition. One or more loud speakers in the region can be used to communicate a preferred evacuation route to individuals in the region. The route can be dynamically altered as the condition varies over time. | 04-09-2009 |
| 20090304202 | SOUND AMPLIFICATION SYSTEM - A classroom sound amplification system adapted for providing information aiding at diagnosing possible erroneous or inappropriate conditions or configuration of the system is disclosed. The system comprises a microphone device converting a voice to a sound signal and connecting to a sound processing device processing the sound signal and generating a processed sound signal, and a speaker device connecting to the sound processing device and converting the processed sound signal to a processed voice. The microphone device, the sound processing device, the speaker device and one or more A/V-devices are connected to or form part of the control device allowing the control device to collect operational information concerning the operation and/or status of devices of the system by monitoring predefined operational a parameters at various points in time. | 12-10-2009 |
| 20100002893 | LOW LATENCY ULTRA WIDEBAND COMMUNICATIONS HEADSET AND OPERATING METHOD THEREFOR - A wireless communication system for use in aircraft includes a wireless headset having at least one ear cup with a housing. A first ultra wideband transceiver is disposed in the ear cup housing. A base station includes a second ultra wideband transceiver. The second ultra wideband transceiver wirelessly communicates with the first ultra wideband transceiver. | 01-07-2010 |
| 20100135505 | Very high intelligibility mass notofication system - A mass notification system (MNS) loudspeaker having very high intelligibility. The MNS loudspeaker includes a plurality of transducers arranged in a symmetric pattern around an axis, so as to produce a substantially cylindrical wave front of sound pressure. The loudspeakers are coupled to a cap, and form a cylinder whose inner diameter is large enough to slip over a pole to which the loudspeakers are to be mounted. The under side of the cap may rest atop the pole. An inner cylinder encloses an air volume behind the transducers for acoustic loading and environmental protection of the transducers. An optional telescoping stand retracts into the inner cylinder. | 06-03-2010 |
| 20100150373 | SHARING PUBLIC ADDRESSING SYSTEM USING PERSONAL COMMUNICATION DEVICES IN AN AD-HOC NETWORK - A method, system, and computer program product for using a personal communication device as a microphone in a seminar or conference setting. A client is electrically connected to a PA system and one of many hosts can access the PA system by associating with the client. The association can be transferred by the client or the host. Tokens can be generated for each transfer and a map can be created and stored. | 06-17-2010 |
| 20100189278 | PUBLIC-ADDRESS SYSTEM | 07-29-2010 |
| 20100208913 | MODIFICATION OF AUDIO SIGNALS FOR DISTRIBUTION IN A ROOM - A device for modifying audio signals to be output within a room is introduced. The device exhibits an input for supplying audio information and a processor unit for modifying the audio information. The device further exhibits at least two outputs for distributing respectively modified audio information. The processor unit is here adapted to modify the audio information in such a way that respective sound sources to be connected to the outputs simulate a linear sound source for outputting the audio information according to the audio signals. The linear sound source is here achieved via the coherent coupling of a plurality of point sound sources, for example loudspeakers. | 08-19-2010 |
| 20100215187 | PUBLIC ADDRESS SYSTEM USING WIRELESS MOBILE COMMUNICATION DEVICES - A public address system is set forth, comprising at least one wireless mobile communication device; a sound system; and a back-end system for selectively receiving a wireless signal from the wireless mobile communication device and transmitting the signal to the sound system for broadcast. | 08-26-2010 |
| 20100260349 | SOLAR WIRELESS SOUND SYSTEM - A solar wireless audio system is provided. The solar wireless audio system includes a transmitting portion and a solar outdoor speaker. The transmitting portion includes a transmitting circuit and an audio input device connected with an input of the transmitting circuit. A receiving circuit and a power amplifier are inside the solar outdoor speaker, and the power amplifier is connected with output of the receiving circuit. Audio input device is a connecting interface for iPod player. Audio detection circuit and power management circuit are inside the solar outdoor speaker. Input of audio detection circuit is connected with output of receiving circuit. Output of audio detection circuit is connected with the inputs of power management circuit and power amplifier, respectively. Output of the power management circuit is connected with power control terminal of power amplifier. The solar outdoor speaker can be switched between sleep mode and active mode. | 10-14-2010 |
| 20100310090 | SOUND AMPLIFICATION SYSTEM COMPRISING A COMBINED IR-SENSOR/SPEAKER - A public address system including a wireless IR microphone for picking up a sound and converting it to an IR light signal including an audio signal representative of said sound and adapted for being transmitted to an IR sensor; an IR sensor including an IR photo detector for receiving said IR light signal and a first receiver for extracting said audio signal and a first transmitter transmitting it to a base station; a base station including a second receiver for receiving said audio signal from said IR sensor and a processor for processing said audio signal to provide a processed audio signal and a second transmitter transmitting it to a loud speaker; and a loud speaker unit for receiving said processed audio signal and converting it to a processed sound signal for being presented to an audience, wherein said IR sensor and loudspeaker unit are integrated into a sensor-speaker assembly. | 12-09-2010 |
| 20110216915 | PROVIDING AUDIBLE INFORMATION TO A SPEAKER SYSTEM VIA A MOBILE COMMUNICATION DEVICE - A mobile communication device connects with a computing device via short range wireless signaling provided between the mobile communication device and the computing device, and receives audible information from a user of the mobile communication device. The mobile communication device also encodes the audible information at a particular audio bandwidth, and provides the encoded audible information to the computing device, where the computing device outputs the encoded audible information. | 09-08-2011 |
| 20120269362 | SHARING PUBLIC ADDRESSING SYSTEM USING PERSONAL COMMUNICATION DEVICES IN AN AD-HOC NETWORK - A method, system, and computer program product for using a personal communication device as a microphone in a seminar or conference setting. A client is electrically connected to a PA system and one of many hosts can access the PA system by associating with the client. The association can be transferred by the client or the host. Tokens can be generated for each transfer and a map can be created and stored. | 10-25-2012 |
| 20130216063 | Mobile Microphone System and Method - A method centrally controls communication at a single venue. Information, at least at the venue, is provided to attendees at the venue for transmitting electronic signals to the central communication point. At least one electronic communication transmission from an attendee who has access to the central communication point is enabled to have at least part of the transmission broadcast at the venue or allow open communication from the attendee to be broadcast at the venue. The personal mobile communications device of an attendee is used as a microphone over wireless telephone networks or local wireless communication networks. | 08-22-2013 |
| 20140023204 | PUBLIC ADDRESS SYSTEM USING WIRELESS MOBILE COMMUNICATION DEVICES - A public address system is set forth, comprising at least one wireless mobile communication device; a sound system; and a back-end system for selectively receiving a wireless signal from the wireless mobile communication device and transmitting the signal to the sound system for broadcast. | 01-23-2014 |
| 20150098585 | METHOD AND APPARATUS FOR TRANSIT SYSTEM ANNUNCIATORS - An apparatus and method for spatialized communication of announcements to persons in a transit vehicle moving among a plurality of transit stations in at least two different languages simultaneously, in which at least two sound-emittive speakers are spaced-apart and disposed in opposing relation for persons to hear announcements. A storage device stores signals representative of at least one announcement associated with at least each transit station in at least two different languages. A communicator simultaneously communicates the signals representative of the announcement for each one of the at least two languages to a respective one of the speakers at a predetermined time prior to arrival of the transit vehicle at the transit station in sequence. The announcement, being communicated by each one of the at least two speakers in one of the at least two languages, is spatializedly discernable by persons in the transit vehicle in each of the communicated language. | 04-09-2015 |
| 20150124995 | PUBLIC ADDRESS SYSTEM WITH WIRELESS AUDIO TRANSMISSION - A public address (PA) system that includes wireless audio transmission is disclosed. The system receives an analog audio input from a sound board or other output device. The audio input is converted to an encoded audio stream and broadcast using a wireless communication protocol. A mobile device can connect to the system, authorize a user, and decode the broadcast audio stream, which allows the user to enjoy the performance in real time. | 05-07-2015 |
| 20150139441 | SYSTEM AND METHOD FOR MINIMIZING ACTIVE SPEECH DISRUPTIONS AND ASSURING TASK LEVEL CONTINUITY ON A FLIGHT DECK - A flight deck communication system comprises a speech engine for receiving a pilot's speech input and an aural annunciation manager. A smart pilot is coupled to the speech engine and to the aural annunciation manager and configured to (a) generate new aural message annunciation requests, (b) determine if the pilot is engaged in an active speech input task, (c) deferring annunciation if the message is not a high priority message, (d) annunciate the deferred message when the active speech input task is completed, (e) annunciate the received message substantially immediately if the message is a high priority message, and (f) store the progress of the active task. | 05-21-2015 |
| 20160112815 | METHOD OF IDENTIFYING A WIRELESS COMMUNICATION CHANNEL IN A SOUND SYSTEM - A method of identifies an appropriate wireless communication channel in an audio receiving device, that comprises 1) a wireless receiver receiving an audio signal on a particular transmission channel selected among a predefined number of possible transmission channels, and 2) a microphone for picking up a sound in the environment of the audio receiving device. The method comprises a) selecting a channel as the receiving channel among a predefined number of possible transmission channels; b) analyzing the received signal received and the signal picked up by the microphone; c) determining whether a predefined criterion concerning the degree of similarity of the received signal and the signal picked up by the microphone is fulfilled; d) KEEPING the channel as the receiving channel, if the predefined criterion is fulfilled; and e) CHANGING the receiving channel to another channel if the predefined criterion is NOT fulfilled. | 04-21-2016 |
| 20160134981 | Mobile Microphone System and Method - A method centrally controls communication at a single venue. Information, at least at the venue, is provided to attendees at the venue for transmitting electronic signals to the central communication point. At least one electronic communication transmission from an attendee who has access to the central communication point is enabled to have at least part of the transmission broadcast at the venue or allow open communication from the attendee to be broadcast at the venue. The personal mobile communications device of an attendee is used as a microphone over wireless telephone networks or local wireless communication networks. | 05-12-2016 |
| 20160142839 | FEATURES AND OPTIMIZATIONS FOR PERSONAL COMMUNICATION DEVICE BASED PUBLIC ADDRESSING SYSTEM - Systems and methods are described herein, a method including, but not limited to, transmitting, at a first frame time, a first number of redundant data packets; transmitting, at a second frame time, a second number of redundant data packets in response to data packet loss beyond a predetermined tolerance level, the second number being greater than the first number; and transmitting, at a third frame time, a third number of redundant data packets, the third number is between the first number and the second number. | 05-19-2016 |
| 20160192094 | DEVICE FOR PLAYING MUSIC AND CONTROL METHOD THEREOF - A device for playing music includes a maglev unit and a base unit. The maglev unit outputs a first sound signal based on a physical signal corresponding to an original sound signal. The base unit provides the physical signal to the maglev unit via a first wireless transmission, and outputs a second sound signal based on the original sound signal. The base unit includes a maglev control module, a power supply module and a processor. The maglev control module generates a magnetic force according to a first current to make the maglev unit float on the base unit. When the first current is continuously within a predetermined current range for a predetermined time duration, the processor controls the power supply module to output the first current, and to supply an electrical energy to the maglev unit via a second wireless transmission that is different from the first wireless transmission. | 06-30-2016 |
| 20160197587 | POWER AMPLIFIERS COUPLED IN SERIES | 07-07-2016 |
| 20160198277 | Media Content Based on Playback Zone Awareness | 07-07-2016 |
| 381083000 | Feedback suppression | 2 |
| 20080212792 | MICROPHONE APPARATUS - A microphone apparatus is obtained capable of preventing howling effectively, while having no time difference between a timing of voice utterance to a microphone and a timing of sound emission from a speaker and having simple and low-cost physical and electrical configurations. There are provided microphone units or microphones disposed at locations with the same acoustic conditions, and switching units disposed corresponding to the microphone units or microphones, respectively, for switching sequentially an audio signal transformed in each of the microphone units or microphones to generate an output signal. The switching units may switch sequentially the audio signal transformed in the microphone unit or microphone at an shorter time interval than a time period from a time point the microphone unit or microphone is turned on to a time point an output thereof grows to reach a maximum level by howling. | 09-04-2008 |
| 20160142840 | FEATURES AND OPTIMIZATIONS FOR PERSONAL COMMUNICATION DEVICE BASED PUBLIC ADDRESSING SYSTEM - Systems and methods are described herein, a method including, but not limited to, transmitting, at a first frame time, a first number of redundant data packets; transmitting, at a second frame time, a second number of redundant data packets in response to data packet loss beyond a predetermined tolerance level, the second number being greater than the first number; and transmitting, at a third frame time, a third number of redundant data packets, the third number is between the first number and the second number. | 05-19-2016 |
| 381084000 | Spare amplifier substitution | 1 |
| 20140146980 | SYSTEM AND METHOD FOR MODULAR ON-DEMAND AUDIO PROCESSING, AMPLIFICATION AND DISTRIBUTION - The present disclosure relates to a system and method for processing, amplification and distribution of audio signals. In an embodiment, the method includes receiving at least one digital audio input signal from one or more audio sources via wireless or wired communications. In an embodiment, address information accompanying the at least one digital audio input signal is identified to determine to which modular processor/amplifier unit the audio signal is to be directed. In dependence upon identification of one or more modular processor/amplifier units, the identified one or more modular processor/amplifier units are awakened, and the processed/amplified audio signals is directed to one or more audio listening zones. | 05-29-2014 |
| 381085000 | Speaker or channel switching | 4 |
| 20150023522 | METHOD FOR PERFORMING ANNOUNCEMENTS IN A MEANS OF TRANSPORT - Method for performing announcements in a means of transport that has an announcement device having at least one loudspeaker and an entertainment device, having the following steps: an announcement start signal is sent from the announcement device to the entertainment device at the beginning of an announcement; an interruption to the reproduction of the reproduction appliance is prompted by the entertainment device when the announcement start signal is received; the announcement is reproduced as an audible announcement signal via the announcement loudspeaker; continuation of the reproduction of the reproduction appliance is prompted by the entertainment device when an announcement end signal is received or at the end of reception of the announcement start signal, characterized by detection of an audio signal that is output by the announcement loudspeaker by the entertainment device, wherein the reproduction of the reproduction appliance is automatically interrupted after the audio signal is detected. | 01-22-2015 |
| 20160050505 | INTERCOM NETWORK AND TERMINAL THEREFOR - The invention relates to, among others, an intercom network ( | 02-18-2016 |
| 20160139873 | Audio Content Auditioning by Playback Device - A first playback device plays first audio content in synchrony with at least one second playback device. One or more commands is received that define a duration of time. The first playback device stops playback of the first audio content based on the received one or more commands. After stopping playback of the first audio content, second audio content is played for the duration of time defined by the one or more commands. After playing the second audio content for the duration of time, the first playback device resumes playback of the first audio content in synchrony with the at least one second playback device. | 05-19-2016 |
| 20160183025 | SYSTEM AND METHOD FOR SPEECH REINFORCEMENT | 06-23-2016 |
