Matches 1 - 29 out of 29
Match Document Document Title
7397791 Telephone communication system over a single telephone line  
An improved telephone system over a single telephone line within a residence or other building is disclosed, supporting exchange features and enabling easy expansion for multiple external lines....
7317793 Method and system for providing DC power on local telephone lines  
A system for providing DC power on local telephone lines, such as telephone lines in a building or office, for powering devices and circuitry associated with communications over those telephone...
7274688 Telephone communication system over a single telephone line  
A module and kit for coupling at least one telephone service signal to at least one telephone device over a wiring. The network includes: a wiring having at least two conductors for carrying...
7227932 Multi-band data over voice communication system and method  
An interactive system and method for communicating data over a network of twisted pair wiring that is in active use as a conductive path for ordinary telephone signals. Data is encoded redundantly...
7224780 Multichannel transceiver using redundant encoding and strategic channel spacing  
A transceiver is operable to connect to a 2-wire conductive path to communicate information in multiple channels to a companion transceiver. Data is encoded redundantly inside the channels,...
7187686 Telecommunication system, method and subscriber unit for use therein  
A telecommunication system includes a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein...
7149289 Interactive data over voice communication system and method  
An interactive system and method for communicating data over a network of twisted pair wiring that is in active use as a conductive path for telephone signals. A first channel is used for...
7145990 High-speed data communication over a residential telephone wiring network  
A method and system for communicating between a number of computers within a residence over an active telephone network, and for communicating data between a telephone exchange and the residence in...
7126958 Telecommunication system, method and subscriber unit for use therein  
A telecommunication system includes a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein...
6970537 Video transmission and control system utilizing internal telephone lines  
A video transmission system for facilitating transmission of video and control signals, particularly infrared remote control signals, between different locations in a residence using existing...
6917624 Method and apparatus for providing a derived digital telephone voice channel  
A method and device for distributing both high-speed data service, such as digital computer, video and multimedia data, and lower speed data service, such as POTS voice telephone signals,...
6865193 Video transmission system and method utilizing phone lines in multiple unit dwellings  
Video programming signals from a broadband source are distributed on installed telephone wiring to the individual units of a commercial structure or multiple unit dwelling. In all methods and...
6370149 Telecommunication system, method and subscriber unit for use therein  
A telecommunication system includes a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein...
6370137 Method and apparatus for providing broadband access conferencing services  
A method and apparatus for providing broadband conferencing services is provided. The method includes the steps of establishing a voice channel over a circuit switched telephone network and a...
6335936 Wide area communication networking  
A wide area communications network ( 500 ) includes a first digital subscriber line ( 502 ). A first network interface device ( 504 ) connects to the digital subscriber line ( 502 ). The first...
6212204 Subscriber line multiplexer  
A system for the connection of any standard analog terminal subscriber telephone equipment, e.g. analog telephone, facsimile, and analog computer modem devices, to be utilized concurrently at a...
5764980 Method for coordinating production of an animated feature using a logistics system  
A computer animation production system (2) for processing digital image data is disclosed. The computer animation production system (2) contains at least one information processing device (44-76)...
5091849 Computer image production system utilizing first and second networks for separately transferring control information and digital image data  
A computer image production system (2) for processing digital image data is disclosed. The computer animation production system (2) contains at least one information processing device (44-76) for...
4998274 ISDN dual bus extension phone system  
Several ISDN telephone terminals in a passive bus configuration are enabled to be used to share a single voice communication in the familiar extension phone arrangement by means of a second bus...
4996709 Intercom telephone  
An intercom system for use in combination with a multi-line telephone system wherein the intercom system utilizes the same wire pair for communications between intercom units that is used for...
4937821 Pipeline information delivery system  
An information delivery system which continuously provides sets of information which can be selected by a user. Digital data is encoded as analog signals which are used to amplitude modulate a...
4932022 Integrated voice and data telephone system  
An integrated voice and data telephone system is disclosed. The invention provides a telephone-based integrated voice, data and application communication system for small businesses. The system...
4876696 Transmission system for transmitting multifrequency signals or modem signals with speech signals  
A transmission system for transmitting modem signals or multifrequency (MF) signals together with speech signals over the same digital transmission line. The system includes a transmitter which has...
4864649 Driver circuit for driving a light emitting element by superimposing an analog sub-information signal over a digital main signal  
A driver circuit for driving a light emitting element with a signal generated by superimposing an analog sub-information signal over the pulse string of a digital main signal. The driver circuit...
4807225 Telephone line carrier system  
A telephone line carrier system comprising a master station (221) and one or more remote stations (222) is disclosed. Each station (221, 222) is bridged, in a parallel electrical connection, onto a...
4752926 Orderwire detector for communication systems  
A orderwire detector circuit operates to identify whether an orderwire signal is of a digital or of an analog format. The orderwire signal is conveniently combined with a high speed data signal....
4730311 Remote multiplexer for digital telephone system  
A multiplexer for use in a telephone system in which a plurality of subscriber locations are connected to a central office by a single subscribe loop is described. The multiplexer unit of the...
4665516 Information transport system employing telephone lines  
A data transport system connects with a telephone system for communication of data via subscriber telephone lines to a provider of data services. Connection of multiplexing circuitry to a set of...
4639911 Head-end and receiver for a signal distribution system  
Head-end and receiver for a signal distribution system for signals having a wide frequency band and for accompanying signals having a narrow frequency band, such as the video signal and the sound...
Matches 1 - 29 out of 29