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Class Information
Number: 379/338
Name: Telephonic communications > Repeater (e.g., voice frequency)
Description: Subject matter which receives and retransmits a signal which is amplified or processed in a telephone system.

Sub-classes under this class:

Class Number Class Name Patents
379/344 Component processes bidirectional signals 39
379/343 Controlled by a pilot or reference signal 26
379/340 Having line length compensation or equalization 53
379/349 Having voice frequency transformer 8
379/341 Pulse or tone repeater (e.g., electromechanical relay) 15
379/348 Transmission of power to distant repeater 36
379/346 With frequency discriminator or negative impedance element 25
379/347 With gain or attenuation control 80
379/339 With signal conversion (e.g., dial to dtmf, analog to pcm) 64

Patents under this class:
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Patent Number Title Of Patent Date Issued
8675714 Trace canceller with equalizer adjusted for trace length driving variable-gain amplifier with automatic gain control loop Mar. 18, 2014
8594158 Base and repeater stations Nov. 26, 2013
8548030 Relay apparatus Oct. 1, 2013
8145188 Method for call charge transfer between mobile communication terminals Mar. 27, 2012
8078161 Millimeter wave communication system Dec. 13, 2011
7697965 Mobile phone with sliding keypad insertion into housing Apr. 13, 2010
7684520 Method and apparatus for bus repeater tapering Mar. 23, 2010
7574730 Device and system for reducing confluence noise Aug. 11, 2009
7123648 Radio relay apparatus Oct. 17, 2006
7092434 Mobile station used as a repeater station when communicating with a base station Aug. 15, 2006
7076460 Interactive remote auction bidding system Jul. 11, 2006
7069243 Interactive remote auction bidding system Jun. 27, 2006
6980819 Radio communication system, and apparatus, method, and computer program for said radio communication system Dec. 27, 2005
6950670 Wireless network having joint power and data rate adaptation Sep. 27, 2005
6888881 Repeater May. 3, 2005
6842426 Fault detection for subscriber loop repeaters Jan. 11, 2005
6798878 Local loop telecommunication repeater housing having mounting slots enabling replaceable repeater and voltage protector assemblies Sep. 28, 2004
6788783 Digital loop carrier system with enhanced call handling and method Sep. 7, 2004
6628638 Method and apparatus for receiving diversity signals for use in OFDM radio communication system Sep. 30, 2003
6535603 Local loop telecommunication repeater housings employing thermal collection, transfer and distribution via solid thermal conduction Mar. 18, 2003
6510223 Local loop telecommunication repeater housings employing thermal collection, transfer and distribution via solid thermal conduction Jan. 21, 2003
6415269 Interactive remote auction bidding system Jul. 2, 2002
6292556 Local loop telecommunication repeater housings employing thermal collection, transfer and distribution via solid thermal conduction Sep. 18, 2001
6289097 Method and system for a redirect repeater providing network access Sep. 11, 2001
6195531 Method and system for automatic configuration of fixed cellular terminals Feb. 27, 2001
6188763 Signal processing unit for network interface unit Feb. 13, 2001
6044147 Telecommunications system Mar. 28, 2000
5875210 Method and apparatus for repeating data Feb. 23, 1999
5819104 Disk array memory system having bus repeater at disk backplane Oct. 6, 1998
5802164 Systems and methods for controlling telephone sound enhancement on a per call basis Sep. 1, 1998
5796585 Electronic equipment mounting device Aug. 18, 1998
5594785 Method of producing ring-back tone in order wire Jan. 14, 1997
5592507 Intermediate relay station of a digital microwave communication system using service channel for monitoring and controlling space and/or time diversity, heterodyne relay, phase control, freque Jan. 7, 1997
5422929 Telephone line repeater and method of testing same Jun. 6, 1995
5412716 System for efficiently powering repeaters in small diameter cables May. 2, 1995
5410594 Transmission input/output device with reduced power consumption Apr. 25, 1995
5386470 Repeaters for secure local area networks Jan. 31, 1995
5365590 System for providing access to digitally encoded communications in a distributed switching network Nov. 15, 1994
5347565 Order wire device having function for reducing noise in communication system having a plurality of order wire devices Sep. 13, 1994
5202919 Metallic channel unit network Apr. 13, 1993
5195132 Telephone network speech signal enhancement Mar. 16, 1993
5086462 Terminal repeater having a function for repeating DC loop signal Feb. 4, 1992
5038140 Supervisory system in communication system Aug. 6, 1991
4966562 Single slot repeater mounting Oct. 30, 1990
4882749 Control of signal transmission Nov. 21, 1989
4771229 Circuit arrangement for automatic connection of the remote feed current paths of a remote feed loop Sep. 13, 1988
4704733 Cell enhancer for cellular radio telephone system having diversity function Nov. 3, 1987
4682356 Apparatus for transmitting and/or receiving balanced signals on a two-wire telecommunication line Jul. 21, 1987
4674119 Wide-band high voltage amplifier for telephone exchange subscriber line interface utilizing low voltage control circuitry Jun. 16, 1987
4670902 Circuitry for telephone systems Jun. 2, 1987

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