| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 379350000 | SUPERVISORY OR CONTROL LINE SIGNALING | 51 |
| 20080267390 | System and method for in-band control signaling using bandwidth distributed encoding - Systems and methods are disclosed for in-band control signaling using bandwidth distributed encoding to send modulated control carrier signals with analog voice signals in the same voice frequency band. A transmitting device generates control carrier signals spread over a voice frequency band, combines them with analog voice signals in the voice frequency band, and transmits the combined signals over a communication channel. The transmitting device can use a control signal encoder to apply a pseudo-random code to the control carrier signal in order to spread it over a voice frequency band. As such, control signals are sent as in-band signals without significantly degrading the voice signals. A receiving device receives the combined signals within the voice frequency band. The receiving device demodulates the combined signal and uses matching pseudo-random codes to determine if a control signal has been sent. The receiving device also reproduces the voice signals themselves. If a code is matched, then an appropriate response to the control signal can be taken. | 10-30-2008 |
| 20090067613 | Method and Apparatus for Routing Calls Based on the Identification of the Calling Party or Calling Line - A method and apparatus for routing calls for a subscriber based on the identification of the calling party or the originating line. Generally, the present invention operates to identify a calling party or originating line and then select a routing list based on this identification. Once a routing list has been selected, the call will be routed to the destination in the routing list. More specifically, when a call is received, an inquiry is made regarding the identity of the calling party or calling line. If the identification can be determined, then an attempt to retrieve a routing list associated with this identification is made. If a routing list has been provided for the identified party or line, the routing list will be retrieved. If a routing list has not been provided for the identified party or line, a default routing list will be selected for routing the call. | 03-12-2009 |
| 20090214022 | SYSTEM AND METHOD FOR DIALING PROMPT - A dialing prompt system and method may include a monitoring unit, and a dialing prompt information processing unit. The monitoring unit is adapted to monitor whether it is necessary to send dialing prompt information to a user, and if necessary, trigger the dialing prompt information processing unit. The dialing prompt information processing unit determines dialing prompt information for the user, and sends the information to the user. After the embodiment of the present invention is applied to a communication system, if the user sends a call request (by going off-hook, for example), the dialing prompt system generates voice information, text information, picture information, or video image information (namely, at least one of such items) as an indication that allows the user to make the call. That is, at least one item of “voice information, text information, picture information, and video image information” may form diversified information to replace the existing unitary dialing prompt audio signal. | 08-27-2009 |
| 20100046736 | VOICE COMMUNICATION SYSTEM, EQUIPMENT AND PROGRAM - A telephone list data table on an IP telephone server is provided with a region for memorizing a power saving mode state of a PC to be mounted with each softphone. Still more, in the case where there is a calling request of a softphone, a power saving mode of a PC mounted with a softphone is confirmed, and in the case of being in a power saving mode, an IP telephone server transmits a message to return from the power saving mode, to the PC. Still more, after returning of the PC from the power saving mode, calling of the softphone is performed. | 02-25-2010 |
| 20120275590 | SYSTEM AND METHOD FOR EFFECTING PREARRANGED NOTIFICATION FOLLOWING PLACING OF A CALL USING A PREDETERMINED NUMBER - A system for effecting at least one prearranged notification after a calling instrument places a call using a predetermined number; the system including: (a) a jack unit for coupling the calling instrument with an outgoing telecommunication connection; and (b) a server unit coupled with the outgoing telecommunication connection. The server unit is coupled with a plurality of notification media. The jack unit detects when the calling instrument places the call using the predetermined number. When the call is completed, the jack unit alerts the server unit of a completion of the call to the predetermined number. The server unit responds to the alerting by effecting the at least one prearranged notification via at least one notification medium of the plurality of notification media. | 11-01-2012 |
| 20130279687 | Transmitter Initiated On-Line Reconfiguration - A method implemented by a first network component (NC) in a digital subscriber line (DSL) system comprising retrieving an on-line reconfiguration (OLR) request from a control entity (CE), wherein the OLR request is generated by the CE based on a noise increase on a subscriber line between the NC and a second NC in the DSL system, and in response to the OLR request, transmitting a message to a receiver in the second NC to request for a reduced data rate on the subscriber line. | 10-24-2013 |
| 379352000 | Substation originated | 18 |
| 20150358474 | COMMUNICATION PROCESSING SYSTEM, COMMUNICATION PROCESSING METHOD, COMMUNICATION PROCESSING DEVICE, COMMUNICATION TERMINAL, AND CONTROL METHOD AND CONTROL PROGRAM THEREFOR - This system pertains to a communication processing system that effectively makes phone conversations possible from a communication terminal even in a non-business mode that does not identify a user. The communication processing system is provided with the following: a communication terminal; a storage unit that is provided inside the communication terminal or outside the communication terminal, and that stores the association between the communication terminal user-information and customer number, and stores a role number for the communication terminal; and an outgoing call relay unit that, in a case where the communication terminal is being used in a business mode that identifies the user thereof, relays an outgoing call from a call origination communication terminal to the communication terminal corresponding to the customer number, and that, in a case where the communication terminal is being used in a non-business mode that does not identify the user thereof, relays an outgoing call from the call origination communication terminal to the communication terminal corresponding to the role number. | 12-10-2015 |
| 379353000 | Conversion of signal form | 1 |
| 20110007890 | METHOD AND APPARATUS FOR RINGING - A method and apparatus is provided for ring-trip detection in a line card having an analog-to-digital converter for processing voice signals. The method includes receiving a ringing control signal, transmitting a ringing signal to a subscriber line in response to the ringing control signal, and receiving a portion of the ringing signal from the subscriber line. The method includes converting the portion of the ringing signal to a digital signal using the analog-to-digital converter, and providing a ring-trip indication in response to the digital signal. The apparatus includes first circuitry capable of processing a voice signal, the circuitry including a analog-to-digital converter for processing the voice signal. The apparatus includes a ringing generator, second circuitry, and ring-trip detection logic. The generator is capable providing a ringing signal to a subscriber line in response to receiving a ringing control signal. The second circuitry is capable of delivering the portion of the ringing signal to the analog-to-digital converter of the first circuitry, wherein the analog-to-digital converts the portion of the ringing signal to a digital signal. The ring-trip detection logic is capable of providing a ring-trip indication in response to the digital signal. | 01-13-2011 |
| 379354000 | With called number display | 2 |
| 20100322409 | METHOD AND APPARATUS FOR ACCESSING A CONTACTS DATABASE AND TELEPHONE SERVICES - Embodiments described herein provide a method and technique for operating a computing device. An interface is displayed for enabling the computing device to control a voicemail system. The interface includes one or more display objects, wherein each display object is selectable by a user to enter a command input assigned to that display object. A selection is detected of any one of the one or more display objects, and the command input assigned to the display object is identified. A signal tone is generated corresponding to the command input. The signal input may be transmitted across a network to the voicemail system to communicate a command to the voicemail system. | 12-23-2010 |
| 20150016601 | Dialling Phone Numbers - Method and apparatus for effecting a voice communication between user terminals connected via a communication network include displaying a menu of country options to a user and receiving a number in local form. Formatting rules are recalled for a destination country selected by the user from the country options. A country prefix for the destination country is prepended to the number in accordance with the formatting rules to generate a formatted number. The formatted number is supplied to a client installed at the user terminal for effecting the voice communication using the formatted number. | 01-15-2015 |
| 379355010 | Repertory or abbreviated call signal generation | 10 |
| 20130070921 | GATEWAY AUTOMATIC DIALER SUPPORT - A method functions to resolve conflicts between wireless digital telephony and traditional analog telephony when an automatic telephone number dialer is concurrently used in a gateway. The method acts to prioritize telephone calls that operate using one telephone line when a single analog telephone line interfaces with an automatic telephone dialer and an analog telephone set in a system that also operates with a wireless digital telephone interface. The method includes detecting if an active call is present and determines if the telephone number being dialed is of higher priority than the active call. The highest priority call is placed or preserved according to the highest priority regardless of the source of the call in the system. | 03-21-2013 |
| 379355020 | Call address signal stored in terminal | 2 |
| 20090136019 | METHOD AND APPARATUS FOR COMMUNICATING INFORMATION ABOUT A CALLED PARTY TO A CALLING PARTY - A method and apparatus is provided for automatically retrieving and displaying supplemental information about a called party on the CPE of a calling party. When a caller places a call, the number called is used to look up and return to the caller the Universal Resource Locator (URL) of the called party. Application software resident in the caller's CPE uses the URL to retrieve the home page of the called party from the Internet. | 05-28-2009 |
| 379355030 | Including terminal other than telephone | 1 |
| 20140029746 | Providing Called Number Characteristics to Click-to-Dial Customers - A system and method to provide content and call attributes for a destination phone number using a click-to-dial connection includes accepting a query, retrieving links to a document, and searching through cached data using the query to identify relevant or destination number information. If no match is found, the method continues with accessing the document identified by the link for identifying relevant number information and creating a click-to-dial icon to link to the relevant numbers included in the relevant phone number information identified by the query. Next, a popup box for content relevant to the click-to-dial icon and a click feature on the popup box are created to retrieve call destination attributes for viewing by a user. Further, computer instructions create at least one communication connection between two communication devices after viewing call destination attributes. | 01-30-2014 |
| 379355040 | Call address signal stored in network | 4 |
| 20100177883 | METHOD AND SYSTEM FOR OPTIMIZING TWO-STAGE DIALING | 07-15-2010 |
| 20110142225 | Footprint Tracking of Contacts - A footprints device includes an input module and an output module. The input module receives a request for footprint data. The footprint data relates to names of users. The output module sends the footprint data to an address book. The footprint data is marked to indicate when at least one of the names of the users is a contact of the address book. | 06-16-2011 |
| 20120057692 | METHOD AND SYSTEM FOR PROVIDING ADVANCED ADDRESS BOOK FUNCTIONALITY IN A UNIVERSAL PLUG AND PLAY HOME NETWORK ENVIRONMENT - Methods and apparatus are provided for a managing at least one network address book of a user at a TS in a UPnP home network. A request to update a contact entry is received from a TCP that is coupled to the TS in the UPnP home network. The request includes contact information associated with at least one entity of the contact entry, and an identifier of a source of the contact entry. It is determined whether the identifier in the request is associated with any of one or more network address books in one or more WAN servers coupled to the TS via a WAN. When the identifier is associated with at least one of the one or more network address books, the contact entry in the at least one network address book is updated based on the contact information. When the identifier is not associated with any of the one or more network address books, the contact entry in a local address book in the TS is updated based on the contact information | 03-08-2012 |
| 20140341371 | Web Platform with Select-to-Call Functionality - Web content is formatted to show an icon adjacent identified phone numbers to enable select-to-call, e.g., click-to-call functionality from within a web platform. The web platform can include various web browsers, web applications, and the like. The select-to call functionality can comprise an integral part of the web platform, such as comprising part of the web platform's binary. Alternately, the select-to call functionality can be provided through a web plug-in that is downloaded and incorporated into the web platform. The select-to-call functionality can enable the user's web platform context to be maintained during the call. | 11-20-2014 |
| 379355080 | Including prefix in the call address signal | 2 |
| 20080292092 | SYSTEM AND METHOD FOR TELEPHONE NUMBER NORMALIZATION AND DENORMALIZATION - A method is disclosed that normalizes a telephone number from a number of input sources into standardized E.164 “+” format so that the telephone number can be represented in a consistent format relative to the user's own mobile number MSISDN and used uniformly across different functional components in a communications system. The disclosure also describes a method for denormalizing a telephone number in the E.164 “+” format into a dial digit phone number sequence that can be used to successfully establish calls from a user terminal device and to route calls via optimal routes through a voice termination network. | 11-27-2008 |
| 20120128148 | Dialling Phone Numbers - Method and apparatus for effecting a voice communication between user terminals connected via a communication network include displaying a menu of country options to a user and receiving a number in local form. Formatting rules are recalled for a destination country selected by the user from the country options. A country prefix for the destination country is prepended to the number in accordance with the formatting rules to generate a formatted number. The formatted number is supplied to a client installed at the user terminal for effecting the voice communication using the formatted number. | 05-24-2012 |
| 379355090 | Selection of registered call address signal | 1 |
| 20100111289 | Ready-To-Dial Global Phone Numbers - A method, computer-readable medium, and apparatus for providing ready-to-dial global phone numbers is provided. In one embodiment of the present invention, a telephone number parser parses a received telephone number into a collection of telephone number components. The telephone number parser validates each telephone number component of the collection of telephone number components. A telephone number manager stores the collection of telephone number components. In response to receiving a request for a telephone number, a telephone number assembler generates the telephone number from the collection of telephone number components. The telephone number is configured to be successfully dialed from a location from which the telephone number is to be dialed. Finally, the telephone number manager displays the telephone number. | 05-06-2010 |
| 379362000 | Pulse signal generator (e.g., rotary dial) | 1 |
| 20080240410 | SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING - Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to receive a waveform comprising a plurality of spectrally overlapping carrier signals from at least two of a plurality of remote units, wherein the plurality of spectrally overlapping carrier signals are modulated using an inverse Fourier transform algorithm; a transmitter; a processor coupled to the transmitter, wherein the processor outputs data for transmission to the transmitter, wherein the processor applies an inverse Fourier transform algorithm to the data provided to the transmitter; and a controller programmed to analyze a training signal received from a first remote unit and adjust receiver equalizer parameters based on the training signal. | 10-02-2008 |
| 379368000 | Plural-switch number input device (e.g., keypad) | 3 |
| 20080317240 | ALPHA CHARACTER SUPPORT AND TRANSLATION IN DIALER - The innovation supports the ability to map alpha characters entered directly into the dialer application of a smartphone. These alpha characters can be entered via a smartphone keyboard (e.g., QWERTY keyboard) and converted to the appropriate digits as mapped to a conventional telephone keypad. The resultant numerical digits can be used to prompt a network call. Additionally, the innovation can be used during an active call to respond to prompts that traditionally require 12-key mappings. This innovation allows a user to both dial a number directly via a smartphone keyboard, and filter contacts by name, in a non-modal manner. | 12-25-2008 |
| 20100046737 | METHOD OF MAPPING A TRADITIONAL TOUCHTONE TELEPHONE KEYPAD ON A HANDHELD ELECTRONIC DEVICE AND ASSOCIATED APPARATUS - A method of mapping a traditional touchtone telephone keypad on a handheld electronic device having a disambiguation function, and an associated apparatus comprises outputting a representation of a remapped character layout and generating a disambiguated interpretation of an input. | 02-25-2010 |
| 20130129077 | METHOD AND DEVICE FOR ENCODING CHARACTERS AND ROUTING CALLS USING EXPANDED DUAL-TONE MULTI-FREQUENCY (DTMF) ENCODING SCHEME - A dual-tone generating telecommunication device comprising a frequency generating element that produces at least 9 individual tones, each having a distinct frequency between 300 Hz and 3,000 Hz, and at least 17 dial buttons, with each dial button representing at least one distinct character, and where each character directs the frequency generating element to produce a distinct dual tone, with each distinct dual tone being generated by the combination of two different individual tones. | 05-23-2013 |
| 379372000 | Signal reception at substation | 12 |
| 20090110183 | Method, system, and apparatus for attenuating dual-tone multiple frequency confirmation tones in a telephone set - A method, system, and apparatus for attenuating a dialing confirmation tone includes receiving an enable signal from a tactile user input device, generating at least one dual-tone multiple frequency (DTMF) tone, and communicating the at least one DTMF tone to a telephone line. The method further includes attenuating a signal level of the at least one DTMF tone by a predetermined amount to produce at least one attenuated dialing confirmation tone in response to receiving the enable signal, and communicating the at least one attenuated dialing confirmation tone to an audio output device. | 04-30-2009 |
| 20140016771 | LINE CONNECTION APPARATUS AND METHOD - A line connection apparatus is disclosed. A hold/release recognition part records first person identification information by corresponding to second person identification information in a connection database stored in a storage part when a hold is recognized. The first person identification information identifies a first person who holds a line. The second person identification information identifies a second person for whom the line is held. The connection database maintains a state of holding a line and releasing a hold of the line. The connection control part refers to the connection control database and has a first person terminal of the first person in a hold state based on the first person identification information, which is corresponded to the second person identification information indicated by a re-connection request, in response to the re-connection request conducted by a same second person after the line is disconnected in the hold state. | 01-16-2014 |
| 379373010 | Incoming call alerting | 10 |
| 20080310615 | Voice Caller ID - An apparatus and method for audibly annunciating at a device information transmitted over a telephone network. The information is transmitted in the form of a modulated signal to the device wherein the modulated signal is representative of the information. The apparatus includes a receiver for capturing a ring signal and a modulated signal representative of information transmitted over a telephone network during an interval between the ring signal and a subsequent ring signal; a converter in communication with the receiver for converting the modulated signal into a stream of audible signals; and a speaker in communication with the converter for producing audible sounds corresponding to the stream of audible signals representative of the information received over the telephone network. | 12-18-2008 |
| 20090052652 | Methods, Systems, and Products for Ring Suppression - Systems and methods for second call during ring suppression are disclosed. After a communications device receives a first incoming call, the ringer is activated to produce an initial audible alert and thereafter, the ringer of the communications device is suppressed for subsequent audible alerts according to a timed ring suppression profile. Thereafter, a secondary incoming call is routed to the communications device and the ringer is activated to provide notification of the secondary incoming call while the first call is suppressed. | 02-26-2009 |
| 20130243182 | Adaptive Ringtone Detector - A communications system and a method of detecting and learning new ringtones in an automatic manner, comprising a desk phone ( | 09-19-2013 |
| 20140153713 | ELECTRONIC DEVICE AND METHOD FOR PROVIDING CALL PROMPT - A method for providing a call prompt to an electronic device includes presetting a plurality of response commands and an indication signal. The method determines whether one of a plurality of predetermined call events has been triggered. When one of the predetermined call events has been triggered, the method determines whether a specific program is running in the electronic device, the specific program representing a program that is outputting audio signals currently. When the specific program is running in the electronic device, an interrupt command is generated and executed to control the specific program for a predetermined time duration. Then the indication signal is outputted during the predetermined time duration. | 06-05-2014 |
| 379373020 | Distinctive or selective alerting | 4 |
| 20110123017 | SYSTEM AND METHOD FOR PROVIDING PARTICULARIZED AUDIBLE ALERTS - A system and method of generating at least two distinctive auditory alerts upon receiving a transmission or telephone call at a device is described. Data indicative of a first plurality of sounds corresponding to a user of a device configured to receive the transmission or telephone call is accessed, such as from a memory. The first plurality of sounds is played at the device so as to identify a received transmission or telephone call being directed to the user. A telephone number, subscriber name or identifier associated with a transmitting or calling party of the transmission or telephone call is accessed. Data indicative of a second plurality of sounds designating the transmitting or calling party based on the subscriber name, telephone number or identifier is retrieved, such as from a data structure, and the second plurality of sounds is played at the device so as to identify the transmitting or calling party. | 05-26-2011 |
| 20140219440 | System and Method for Modifying or Disabling the Ringtone for an Incoming Call Based on the Existence or Nonexistence of Previous Calls from the Same Caller - The present invention provides a system for managing and disabling phone ring tone profiles, the system comprising: a. a storage system comprising (a) a plurality of ringtones adapted to be activated when an incoming call is made; and, (b) at least one list of identified callers; b. processor to execute at least one data processing system, said at least one data processing system comprising: i. an acquiring module operable to read an identifier of said incoming call or an incoming message; ii. a detecting module operable to detect if the identifier exists in said at least one list in the system, to determine the caller from said list, and to detect how many incoming calls have been made within a predetermined period of time; and iii. a disabling module adapted to either activate or disable said ringtones. | 08-07-2014 |
| 379373030 | Registration of alerting signal in association with incoming signal | 2 |
| 379373040 | Recording audio for use as the alerting signal | 2 |
| 20080240411 | RING TONE REMINDERS - A device may receive a telephone call, automatically create a ring tone in response to receiving the telephone call, and cause the ring tone to be audibly provided to a user. | 10-02-2008 |
| 20140161250 | Contextual Conversation Processing in Telecommunication Applications - A method for generating a ring tone for a given caller based on a prior conversation with that caller. A portion of a conversation with a given caller is recorded and stored in memory as a ring tone. When a subsequent call is received from the same caller, identified by caller ID, the ring tone is played, alerting the user to the incoming call as well as the context of their prior communication. In alternative embodiments of the invention, a prior textual or video conversation is used as the basis for a ring tone, and/or the ‘ring tone’ is delivered by other than audio means. The invention is capable of implementation in telecommunications systems such as cellular, local exchange, and VOIP, and in combination with other forms of internet-based telecommunication. | 06-12-2014 |
| 379375010 | Having electronic call sounder (e.g., tone "ringer") | 1 |
| 20080273689 | TONE ADVISOR, A TONE ASSISTING SYSTEM AND A METHOD OF ASSOCIATING TONES WITH CALLERS - A tone advisor, a tone assisting system and a method of associating tones with callers. In one embodiment the method includes: (1) monitoring calls to and from a user, (2) obtaining information based on the calls and (3) categorizing a caller associated with at least one of the calls into a contact group according to the information and (4) assigning a genre of tones to the contact group. | 11-06-2008 |
| 379376010 | Visual indication of incoming call (e.g., LED or light bulb) | 1 |
| 20140023187 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM AND COMPUTER READABLE MEDIUM - A communication device, including a receiver specification section which specifies a receiving communication device; a control section which transmits, to the receiving communication device specified by the receiver specification section, call request information used for outputting a call request notification and deleting the call request notification after a predetermined time period; a time period setting section which sets a time period during when the call request notification is output by the receiving communication device; a message setting section which sets a call request message; and a cancel instruction section which inputs a cancel instruction of the call request notification. | 01-23-2014 |
| 379377000 | Using line or loop condition detection (e.g., line circuit) | 9 |
| 20080205631 | Control Circuit for Causing Cyclic Application of Sealing Current for Local Loops Supporting Data Network Telephony - A system for causing application of sealing current to one or more local telephony loops has a current source; a switching interface for connecting the current source to the one or more telephony loop interfaces; and a machine-readable instruction accessible to the switching interface, the instruction providing intelligence to the switching interface for identifying the one or more loops to be serviced, the time period for current application to each loop serviced, and a sequence order when more than one loop is serviced. | 08-28-2008 |
| 20100284529 | METHOD AND COMMUNICATION TERMINAL FOR DETECTING THE STATUS OF A TELEPHONE RECEIVER - The invention relates to a method for detecting the status of a telephone receiver (H) for a communication terminal (EG), wherein the telephone receiver (H) is equipped with a microphone (M) and with a loudspeaker (LS). The loudspeaker (LS) of the telephone receiver (H) is used to output a defined tone signal, and this tone signal is simultaneously picked up again by means of the microphone (M) of the telephone receiver (H). The tone signal picked up is analysed, with at least one value for at least one parameter of the tone signal picked up being ascertained, and the at least one value is used to determine the status of the telephone receiver (H). | 11-11-2010 |
| 20110019813 | COMMUNICATION APPARATUS AND CONTROL METHOD THEREFOR - This invention provides a communication apparatus, which suppresses abrupt changes of a current and voltage generated in a communication line upon connecting an external telephone to the communication line, and a control method thereof. To accomplish this, in a communication apparatus of this invention, when an off-hook state of an external telephone is detected upon connecting the external telephone to a communication line, an SOC captures a line using a first line capture means having an impedance lower than the external telephone side, and then switches an H-relay to connect the external telephone to the communication line. Furthermore, the SOC temporarily switches a line capture state to a second line capture means having an impedance higher than the first line capture means after the H-relay is switched and before the line is released. | 01-27-2011 |
| 20110274266 | Method and Apparatus for Non-Disruptive Telecommunication Loop Condition Determination - In one embodiment, a low cost, simple circuit for detecting an off-hook condition of a telecommunication line comprising tip and ring signal lines is provided. The circuit comprises a voltage divider for coupling between the tip and ring lines without an intervening transistor and having a node at which is presented a scaled version of a voltage across the voltage divider. The circuit further comprises a transistor having a control terminal coupled to the node, a first current flow terminal coupled to a voltage source, and a second current flow terminal coupled to an output terminal, wherein the output terminal bears a value that is indicative of a voltage across the tip and ring lines and thus whether the telecommunication line is off-hook. | 11-10-2011 |
| 20130216040 | COMMUNICATION APPARATUS AND CONTROL METHOD THEREFOR - This invention provides a communication apparatus, which suppresses abrupt changes of a current and voltage generated in a communication line upon connecting an external telephone to the communication line, and a control method thereof. To accomplish this, in a communication apparatus of this invention, when an off-hook state of an external telephone is detected upon connecting the external telephone to a communication line, an SOC captures a line using a first line capture means having an impedance lower than the external telephone side, and then switches an H-relay to connect the external telephone to the communication line. Furthermore, the SOC temporarily switches a line capture state to a second line capture means having an impedance higher than the first line capture means after the H-relay is switched and before the line is released. | 08-22-2013 |
| 20140369490 | COMMUNICATION APPARATUS, METHOD OF CONTROLLING THE SAME AND STORAGE MEDIUM - A communication apparatus has an off-hook detection function, and has a first electric power supply for supplying electric power to a telephone control unit for controlling a telephone apparatus, and a second electric power supply for supplying electric power to an off-hook detection unit for detecting an off-hook of the telephone apparatus. The apparatus causes the off-hook detection unit to detect an off-hook of the telephone apparatus when, from a first power mode, a second power mode, in which electric power consumption is less than in the first power mode, is transitioned into. | 12-18-2014 |
| 379380000 | By bridge circuit | 2 |
| 20110075831 | CALL CONTROL SYSTEM AND CALL CONTROL METHOD - A call control system for connecting to a callee from a caller for phone call including a connection request receive section for receiving a connection request contains a telephone number of a telephone terminal of the caller and a telephone number of a telephone terminal of the callee from the caller to the callee, from an information terminal equipment of the caller. A call callee section for calling to the telephone terminal of the callee, and settles a callee voice call session to the telephone terminal of the callees a-call caller section for calling to a telephone terminal of the caller, and settling a caller voice call session to a telephone terminal of the caller after the callee voice call session is settled. | 03-31-2011 |
| 20150117634 | METHOD AND DEVICE FOR DETECTING A BRIDGED TAP WITHIN A TELECOMMUNICATION LINE - The present invention refers to a method and device for detecting a bridged tap within a telecommunication line. In order to reliably detect bridged taps of different types, in particular wire pair bridged taps and single wire bridged taps, and/or to determine a type of each detected bridged tap the method includes determining first transfer function data that characterize an actual transfer function of the telecommunication line; detecting the bridged tap depending on the first transfer function data; simulating the telecommunication line based on a result of the detecting; and identifying the type of the bridged tap by comparing results of the simulating with the first transfer function data. | 04-30-2015 |
| 379382000 | For ring trip or polarity reversal detection | 1 |
| 20130236003 | Method and Apparatus for Non-Disruptive Telecommunication Loop Condition Determination - In one embodiment, a low cost, simple circuit for detecting an off-hook condition of a telecommunication line comprising tip and ring signal lines is provided. The circuit comprises a voltage divider for coupling between the tip and ring lines without an intervening transistor and having a node at which is presented a scaled version of a voltage across the voltage divider. The circuit further comprises a transistor having a control terminal coupled to the node, a first current flow terminal coupled to a voltage source, and a second current flow terminal coupled to an output terminal, wherein the output terminal bears a value that is indicative of a voltage across the tip and ring lines and thus whether the telecommunication line is off-hook. | 09-12-2013 |
| 379386000 | Signal receiver (e.g., tone decoder) | 6 |
| 20080304651 | System and method for overcoming dual tone multi frequency (DTMF) signal attenuation in analog and packet based networks - A telephone may include a transmitter configured to transmit signals over a network a receiver configured to receive signals from the network a DTMF signal generator configured to generate DTMF signals, a DTMF gain adjustment module, and an amplifier module in communication with the DTMF signal generator and the DTMF gain selection module, where the amplifier module may be configured to amplify the DTMF signals. In one embodiment, the amplifier modules causes the DTMF signals to increase power by 10 dB so that DTMF signals being communicated over a network, possibly multiple packet networks, may be amplified if the DTMF signals are attenuated over the network and a remotely accessed telecommunications system, such as a voicemail system, cannot communicate with the telephone due to the attenuated DTMF signals. | 12-11-2008 |
| 20080304652 | System and method for amplifying attenuated DTMF signals in a packet based network - A network interface device may include an I/O unit configured to receive data packets from a packet network. A processing unit may be in communication with the I/O unit and be configured to identify data packets including data representative of DTMF signals, convert the data in the data packets into analog DTMF tone signals, and determine if power of the analog DTMF tone signals is below a threshold value. A digital to analog converter may be in communication with the processing unit and be configured to generate the analog DTMF tone signals based on the data in the data packets. A DTMF amplifier may be in communication with the processing unit and the digital to analog converter, where the processing unit may cause the DTMF amplifier to amplify the power of the analog DTMF tone signals in response to determining that the power of the analog DTMF tone signals are below the threshold value. | 12-11-2008 |
| 20090154690 | PARALLEL SIGNAL PROCESSING SYSTEM AND METHOD - A system and method for processing a plurality of channels, for example audio channels, in parallel is provided. For example, a plurality of telephony channels are processed in order to detect and respond to call progress tones. The channels may be processed according to a common transform algorithm. Advantageously, a massively parallel architecture is employed, in which operations on many channels are synchronized, to achieve a high efficiency parallel processing environment. The parallel processor may be situated on a data bus, separate from a main general purpose processor, or integrated with the processor in a common board or integrated device. All, or a portion of a speech processing algorithm may also be performed in a massively parallel manner. | 06-18-2009 |
| 20090262924 | TONE SIGNAL DETECTOR, TONE SIGNAL DETECTION METHOD, AND COMPUTER READABLE RECORDING MEDIUM - Upon selection of the frequency of a tone signal, a local oscillator generates a frequency signal having a shift frequency corresponding to the frequency of this tone signal. A frequency shifter generates a frequency-converted signal by shifting a frequency of the tone signal by a shift frequency of the frequency signal generated by the local oscillator. A BPF removes an image signal from the frequency-converted signal which the frequency shifter generated, and a normalizer normalizes the amplitude of the signal output from the second BPF. By this, even if the amplitude of the tone signal is small, the amplitude thereof is unified to a suitable magnitude. For this reason, even if there is a difference in the amplitude of the tone signal, the tone signal can be detected reliably and an false detection can be prevented. | 10-22-2009 |
| 20090323923 | CONTROLLER USING DUAL-TONE MULTI-FREQUENCY (DTMF) TONES - A method and device for converting signals from a Human-Interface Device or similar input device to a stream of digital signals that are useable as inputs to an RS-232 or dual-tone multi-frequency (DTMF) circuit is provided. More specifically, the input from the input device may be received at a universal Serial Bus (USB) host and converted to an RS-232 or DTMF signal for ultimate use in controlling a remote device such as a camera in a video security system. | 12-31-2009 |
| 20100008493 | METHODS AND APPARATUS TO DECODE DUAL-TONE SIGNALS - Methods and apparatus to decode dual-tone signals are disclosed. An example receiver to decode a dual-tone signal includes a tone detector to detect a start of a first tone, a first counter to count first cycles of the first tone, a second counter to count second cycles of a system clock while the first counter is counting and the first count is less than a first threshold, state control logic to start the second counter counting third cycles of the clock when a time period elapses, the third count being substantially equal to the second count, the first counter to count fourth cycles of a second tone while the third cycles are counted, and a decoder to compare the fourth count to a second threshold to identify an event represented by the signal. | 01-14-2010 |
