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| Number | Title | Issue Date |
| 7356361 | Hand-held device A hand-held device that provides communication services and symbol processing is described. The device includes a case having a front side comprising a display and a lid having a transparent portion through which the display can be seen in a lid-closed state. In one... | 04/08/2008 |
| 7289491 | Internet telephony arrangement and method An arrangement which includes a telephone and an interface unit, which interfaces the telephone to both a standard switched telephone communications network and an Internet communications network, is disclosed. The interface unit includes an input coupled to the tel... | 10/30/2007 |
| 7280643 | Audio status communication from an embedded device An embedded device configured to provide an audio status output is disclosed. The embedded device includes a processor, an input button in electronic communication with the processor and a speaker in electronic communication with the processor for outputting an audi... | 10/09/2007 |
| 7274779 | Telephone to telephone data passing system Various embodiments of the invention provide methods and systems for sending data in-band over a telecommunications network during an active call. Some embodiments provide a telephone user with a way to send alphanumeric data from his or her phone to a receiving par... | 09/25/2007 |
| 7269209 | Discrete multitone transmission and reception Discrete multitone transmission assigns bits to tones for transmission. The bits are assigned using permutations of bits and tones that cycle through a sequence of permutations in successive frames. ... | 09/11/2007 |
| 7245708 | Acoustic coupling product label A system comprises an acoustic coupling product label (20) for mounting on a product to be serviced. The label (20) includes a memory (23) for storing information relating to the product to be serviced, control means (29) for controlling ... | 07/17/2007 |
| 7233772 | Adaptive radio transceiver with filtering An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged ... | 06/19/2007 |
| 7187736 | Reducing interference in a GSM communication system A method for reducing interference in a desired signal in a GSM communication system uses a finite-impulse-response filter for alternate linear equalization. The method includes a first step (300) of inputting a burst of data of a received waveform including ... | 03/06/2007 |
| 7142658 | DTMF control A method of selectively sending a DTMF tone from a terminal to a first or a second destination, wherein the terminal sends a signal comprising at least one DTMF tone to an intermediate module prior to distribution to the intended destination, comprising: receiving t... | 11/28/2006 |
| 7113893 | Lamp monitoring and control unit and method A unit and method for remotely monitoring and/or controlling an apparatus and specifically for remotely monitoring and/or controlling street lamps. The lamp monitoring and control unit comprises a processing and sensing unit for sensing at least one lamp parameter o... | 09/26/2006 |
| 7092379 | Internet telephony arrangement and method An arrangement which includes a telephone and an interface unit, which interfaces the telephone to both a standard switched telephone communications network and an Internet communications network, is disclosed. The interface unit includes an input coupled to the tel... | 08/15/2006 |
| 7088804 | Systems and methods for information exchange and synchronization using DTMF over telephone communication channels Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.... | 08/08/2006 |
| 7079596 | Multiband data communication apparatus, communication method of multiband data communication apparatus, and storage medium A quadrature demodulator 408′ and a quadrature modulator 908′ convert a reception intermediate frequency signal 151 into reception baseband signals 157 and 158, and also convert transmission baseband signals 657 and 6... | 07/18/2006 |
| 7076460 | Interactive remote auction bidding system An interactive remote auction bidding system for conducting an auction utilizes a data input device for communication over a network to the auction site. The system includes a data processor located at the auction site for generating bid information for communicatio... | 07/11/2006 |
| 7069243 | Interactive remote auction bidding system An interactive remote auction bidding system for conducting an auction utilizes a data input device for communication over a network to the auction site. The system includes a data processor located at the auction site for generating bid information for communicatio... | 06/27/2006 |
| 7054421 | Enabling legacy interactive voice response units to accept multiple forms of input A method of enabling a legacy interactive voice response unit to accept multiple forms of user input can include associating dual tone multi-frequency selectable options of the legacy interactive voice response unit with non-dual tone multi-frequency user inputs. A ... | 05/30/2006 |
| 7023987 | Method and apparatus for adapting a phone for use in network voice operations An interface is provided between a conventional telephone and a conventional computer configured for network voice applications including a sound card and modem. The interface allows for use of the telephone during network voice applications such as IP telephony and... | 04/04/2006 |
| 7013393 | Universal intelligent card for secure access to system functions A method and apparatus for secure access to secured system functions utilizing a universal access card. The card includes a bank of tuned amplifier circuits and tuned audio transducers to maximize audio output power from the card, such as for telephone communication... | 03/14/2006 |
| 6970752 | Method and apparatus for detecting switch closures An apparatus and method for detecting the closure of one of several switches using a single input line of a detector is disclosed. The input line is also used to carry an audio-frequency signal when a recording switch is closed. The switches are connected to a netwo... | 11/29/2005 |
| 6963735 | Method and arrangement for receiving a frequency modulated signal A method and arrangement for receiving a frequency modulated signal, includes mixing the frequency modulated signal into a low-frequency signal, detecting the falling and rising edges of said low-frequency signal and forming a second signal on the basis of the edge ... | 11/08/2005 |
| RE38741 | Audio communication system A communication device capable of receiving, processing and sending analog signals, characterized in that the device is coupled to the audio input/output ports of a built-in or external sound board attached to a computer, through standard audio plugs. The device may... | 06/07/2005 |
| 6891944 | System and method of autodialing for long-distance access A telephone accessory that is connected to a subscriber's telephone line as an extension, and monitors the line for the initiation of a call from any telephone set. The invention detects a call initiation by determining that a telephone set has seized the line witho... | 05/10/2005 |
| 6771751 | Systems and methods for information exchange and synchronization using DTMF over telephone communication channels Systems, methods, protocols and apparatus for information exchange and synchronization using DTMF signaling over telephone communication channels are provided. Information is packetized and converted from one format, e.g., ASCII formatted data, to another format, e.... | 08/03/2004 |
| 6751303 | Data communication over telephone voice channel using DTMF interface A multifrequency tone generator sends data over a telephone voice channel. An alphanumeric character generator sequentially generates alphanumeric characters. Preferably, the character generator may be a keypad or keyboard. A plurality of tone generators have a summ... | 06/15/2004 |
| 6697466 | Audio status communication from an embedded device An embedded device configured to provide an audio status output is disclosed. The embedded device includes a processor, an input button in electronic communication with the processor and a speaker in electronic communication with the processor for outputt... | 02/24/2004 |
| 6683944 | Voice transmitter A voice transmitter includes a first selector for selecting an output of DTMF encoding means or that of voice-DTMF encoding means; DTMF transmission control means for monitoring each state, and for controlling selecting operation of the first selector; DT... | 01/27/2004 |
| 6668043 | Systems and methods for transmitting and receiving text data via a communication device A method of transmitting and receiving text data via a communication device is provided. In one embodiment, an incoming message is received at a communication node. The node determines whether the incoming message comprises text data. If so, the incoming ... | 12/23/2003 |
| 6665383 | Remote control module for computer and method thereof Disclosed is a remote control module for a computer, which creates an order to control a shut down and a start of a computer system by analyzing a DTMF (dual tone multi frequency) signal received through a telephone line. The remote control module has a t... | 12/16/2003 |
| 6643358 | Telephone answering apparatus and method for confirming an acoustic command signal A telephone answering apparatus for confirming an acoustic command signal includes a controller operatively connected to an acoustic signal detector and to an acoustic signal generator. The controller initiates the transmission of an acoustic response sig... | 11/04/2003 |
| 6560320 | Adaptable subscriber unit for interactive telephone applications A method for telephone communications includes providing a protocol that defines a relation between predetermined graphic elements and respective sequences of dual-tone multi-frequency (DTMF) signals. A screen to be displayed is designed, including one or... | 05/06/2003 |
| 6430284 | System and method for redirecting control of in-band signaling In a telecommunication system having a network switch capable of independently controlling inbound and outbound call legs, a system for, and method of, redirecting in-band control of signaling pertaining to a call placed by a calling party and a system fo... | 08/06/2002 |
| 6415269 | Interactive remote auction bidding system An interactive remote auction bidding system for conducting an auction among participants located at remote locations from the auction site utilizes a data input device for communication over a network to the auction site. The system includes a data proce... | 07/02/2002 |
| 6411688 | Method for transferring dial tone in real time in computer communication system A method for transferring dual tone multifrequency (DTMF) signals in real time in a computer communications system for performing a telephone call via a modem. In the method, virtual connection with the modem is performed before a user inputs a connection... | 06/25/2002 |
| 6396921 | Method and system for encoding and decoding typographic characters A system suitable for encoding typographic characters into two digit base ten values and to decode such values to typographic characters are disclosed. The system maps typographic characters, such as letters in the English language and puctuation symbols ... | 05/28/2002 |
| 6259691 | System and method for efficiently transporting dual-tone multi-frequency/multiple frequency (DTMF/MF) tones in a telephone connection on a network-based telephone system A method and system in a network telephony system for transporting audio signals with lower delay when DTMF is not present. The method of transporting audio signals determines whether DTMF signals are included in the audio signal, or are likely to be tran... | 07/10/2001 |
| 6259788 | Technique for balancing loads in a communication network In a telephone network, different telephones are connected to a telephone line in a parallel manner. When two or more of the telephones are in use and conduct electricity, known as an "off-hook" condition, they are oftentimes provided with varying amounts... | 07/10/2001 |
| 6243442 | Telephone exchange apparatus The emergency call such as Enhanced 911 call or the like is also originated through an exchange such as PBX (Private Branch Exchange). In this case, the identification information such as the extension number of the extension telephone terminal connected ... | 06/05/2001 |
| 6236724 | Methods and apparatus for encoding and decoding data transmitted over telephone lines A method of generation and detection of acoustic signals carrying alpha-numeric data for reducing the effects of noise and thereby improving signal transmission without the need to boost the power of the signal. In accordance with one aspect of the invent... | 05/22/2001 |
| 6233323 | DTMF download technique for digital telephone devices The present invention utilizes common hardware and software routines already present in most digital telephone devices, e.g., a DTMF detector; to download data over a telephone line to a digital telephone device. Each symbol of a numeric system, e.g., a h... | 05/15/2001 |
| 6215515 | Videocommunicating device with an on-screen telephone keypad user-interface method and arrangement A videophone apparatus with an on-screen telephone keypad user-interface. The videophone communicates video and audio data over a plain old telephone service (POTS) line and includes a video source and a communication channel interface circuit coupled to ... | 04/10/2001 |
