Patent International Class: H04M 7/4
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Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance
Inventor: Hazani, et al. | Patent Number: 7919970
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Field-mounted process device
Inventor: Brewer, et al. | Patent Number: 7844365
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Direct access arrangement device
Inventor: Wong | Patent Number: 7835516
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Apparatus and method for automatic gain control and echo cancellation in a network system
Inventor: Ziazadeh, et al. | Patent Number: 7813495
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Impedance adapter for a high-bandwidth transmission channel of a copper-wired terminal system
Inventor: Rayher, et al. | Patent Number: 7558385
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IP telephone system
Inventor: Fallahi, et al. | Patent Number: 7505580
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Transmission apparatus with variable impedance matching
Inventor: Canella, et al. | Patent Number: 7496150
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Apparatus and method for performing impedance synthesis in a transmitter
Inventor: Mariani, et al. | Patent Number: 7486786
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Method and circuit for adapting the impedance of an analog telecommunication connection
Inventor: Kunisch | Patent Number: 7260211
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Method of selecting impedance setting for loop start trunk line
Inventor: Fang, et al. | Patent Number: 7215762
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Regulator for impedance balance of a transmission wire pair
Inventor: Bouzidi | Patent Number: 7180998
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XDSL system with improved impedance circuitry
Inventor: Gough, et al. | Patent Number: 7145943
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Device and method for suppressing DSL signal echo induced by bridgetap
Inventor: Olson | Patent Number: 7139392
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Method of line matching in telecommunication networks
Inventor: Kramer | Patent Number: 7110532
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XDSL system having selectable hybrid circuitry
Inventor: Gough, et al. | Patent Number: 7106854
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Method, device and system for output impedance calibration that invariably maximizes hybrid performance
Inventor: Dyer, et al. | Patent Number: 7031456
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Combination telephone network interface device and cable TV splitter
Inventor: Denovich, et al. | Patent Number: 6990192
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Method and apparatus for handling voice and data signals
Inventor: Anderson, et al. | Patent Number: 6990191
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Method and apparatus for dynamically matching impedance
Inventor: Garcia | Patent Number: 6973183
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Method and apparatus for providing variable attenuation to data signals in an XDSL frequency range
Inventor: Capon, et al. | Patent Number: 6963641
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Method and apparatus for providing variable attenuation to data signals in an XDSL frequency range
Inventor: Capon, et al. | Patent Number: 6963641
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Circuit arrangement for forming the termination of an analogous subscriber line
Inventor: Hauptmann, et al. | Patent Number: 6950512
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Frequency-dependent impedance synthesis for DSL interface circuits
Inventor: Chen, et al. | Patent Number: 6842518
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Circuit and method for active termination of a transmission line
Inventor: Lim, et al. | Patent Number: 6788745
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Circuit and method for active termination of a transmission line
Inventor: Lim, et al. | Patent Number: 6788745
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Bidirectional loss/slope equalizer arrangement
Inventor: Orr | Patent Number: 6754338
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Communications interface for wireless communications headset
Inventor: Seibert, et al. | Patent Number: 6745014
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Telephone line interface circuit with intelligent line current and voltage control
Inventor: Sacca, et al. | Patent Number: 6731749
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Synthesized telephone line ring signal impedance termination
Inventor: Poulis, et al. | Patent Number: 6654461
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Impedance matching with sigma delta filter
Inventor: Hendricks, et al. | Patent Number: 6625278
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Programmable multiple-standard digital communications system
Inventor: Armistead, et al. | Patent Number: 6553117
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Linear, optical coupled line impedance circuit
Inventor: Anozie | Patent Number: 6400822
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Line interface and method for detecting and eliminating an impedance mismatch between a transceiver and a transmission line
Inventor: Chaplik | Patent Number: 6400772
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Line interface and method for detecting and eliminating an impedance mismatch between a transceiver and a transmission line
Inventor: Chaplik | Patent Number: 6400772
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Signal line driving circuit with self-controlled power dissipation
Inventor: Bremner | Patent Number: 6377681
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Bridged tap canceller
Inventor: Pett | Patent Number: 6314181
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Line circuit and method for a line circuit
Inventor: | Patent Number: 6301356
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Bridged tap terminator
Inventor: Pett, et al. | Patent Number: 6240178
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Transmission line impedance matching apparatus
Inventor: Combellack | Patent Number: 6097262
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System and method for transmission system automatic impedance matching
Inventor: Frantz, et al. | Patent Number: 5802169
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Circuit and method for reducing common mode interference in telephone instruments
Inventor: Wittman | Patent Number: 5694460
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Modular attenuator
Inventor: Denedios | Patent Number: 5642415
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Semiconductor process, power supply voltage and temperature compensated integrated system bus termination
Inventor: Gist, et al. | Patent Number: 5634014
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IC card-type modem and method for communicating data by IC card-type modem
Inventor: Arai | Patent Number: 5623514
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Multi-variate system having an intelligent telecommunications interface with automatic adaptive delay distortion equalization (and related method)
Inventor: Tapia, et al. | Patent Number: 5555285
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Telephone line interface with AC and DC transconductance loops
Inventor: Hershbarger | Patent Number: 5500894
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Remote terminal channel unit for telephone transmission lines
Inventor: Miller, et al. | Patent Number: 5422950
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Automatic loss control circuit
Inventor: Haughton, et al. | Patent Number: 5396553
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Subscriber line interface circuit for controlling AC and DC output impedance
Inventor: Susak, et al. | Patent Number: 5329585
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Automatic loss control circuit
Inventor: Haughton, et al. | Patent Number: 5274703
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Circuit arrangement for preventing gain from responding to frequency variation despite the presence of an isolation transformer
Inventor: Sinberg | Patent Number: 5038375
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Telephone line interface circuit
Inventor: Nordholt, et al. | Patent Number: 4910769
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Cellular network data transmission system
Inventor: Lebowitz | Patent Number: 4825457
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Cellular telephone data communication system and method
Inventor: O'Sullivan | Patent Number: 4697281
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Trunk circuit with single coupling transformer
Inventor: Beirne, et al. | Patent Number: 4321431
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Comprehensive automatic mobile radio telephone system
Inventor: Frost | Patent Number: 4233473
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Automatic radio telephone system
Inventor: De Jager, et al. | Patent Number: 4228319
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Apparatus and method for frequency channel selection in a radiotelephone system
Inventor: Hamaoki | Patent Number: 4166927
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Comprehensive automatic mobile radio telephone system
Inventor: Frost | Patent Number: 4112257
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Cordless telephone
Inventor: Snider | Patent Number: 4053717
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Mobile unit supervisory control sequencer and method
Inventor: McClure, et al. | Patent Number: 4028500