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  1. Technology classes
  2. /H · Electricity
  3. /H04 · Electric communication technique
  4. /H04B · Transmission
  5. /H04B 1/00 · Details of transmission systems, not covered by a single one of groups
  6. /H04B 1/38 · Transceivers, i.e. devices in which transmitter and receiver form a structural unit
  7. /H04B 1/40 · Circuits
  8. /H04B 1/54 · Using the same frequency for two directions of communication
  9. /H04B 1/58 · Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction
  10. /H04B 1/583 · Using a bridge network
  11. /H04B 1/585
H04B 1/585

With automatic balancing

Official title: {with automatic balancing}

H04B1/585 (With automatic balancing) appears on 11 US grants and 1 published applications in this corpus.

Search patents in H04B

Where it sits

  1. HElectricity
  2. H04Electric communication technique
  3. H04BTransmission
  4. H04B 1/00Details of transmission systems, not covered by a single one of groups
  5. H04B 1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit
  6. H04B 1/40Circuits
  7. H04B 1/54Using the same frequency for two directions of communication
  8. H04B 1/58Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction
  9. H04B 1/583Using a bridge network
  10. H04B 1/585With automatic balancing
Granted patents
11
Published applications
1
Assignees
7
Inventors
13
Latest grant
7 Dec 2004

Filings by year

Granted patentsPublished applications
H04B 1/585: granted patents and published applications per publication year
YearGranted patentsPublished applications
198720
198810
198910
199000
199100
199200
199300
199400
199510
199600
199700
199800
199930
200010
200100
200211
200300
200410

198719972004

By publication year. Applications have been published since 2001.

Recent patents

  • Amplifier arrangement7 Dec 2004US 6,829,352 B2Alcatel
  • Adjustable hybrid having dial tone alignment configuration5 Nov 2002US 6,477,250 B1Westell Technologies, Inc.
  • Method of rapid automatic hybrid balancing29 Aug 2000US 6,111,949 ATeltrend Inc.
  • AGC amplifier for two-wire line conditioner26 Oct 1999US 5,974,137 ATeltrend Inc.
  • Adjustable hybrid having improved biasing configuration5 Oct 1999US 5,963,638 ATeltrend Inc.
  • Amplifier arrangement11 Apr 2002US 2002/0041675 A1Alcatel

Most cited

By later US patents
  • Adaptive cancellation bridge circuit85US 4,670,870 APlessey Overseas Limited · 1987
  • Method of rapid automatic hybrid balancing25US 6,111,949 ATeltrend Inc. · 2000
  • Remote terminal channel unit for telephone transmission lines12US 5,422,950 ATeltrend Inc. · 1995
  • Adjustable hybrid having dial tone alignment configuration12US 6,477,250 B1Westell Technologies, Inc. · 2002
  • Method and apparatus for controlling line conditioner equalizer11US 5,953,412 ATeltrend Inc. · 1999

Top assignees

Documents
  • TTeltrend Inc.5
  • POPlessey Overseas Limited2
  • AAlcatel1
  • AAlcatel1
  • Nokia Corporation1
  • SMSGS Microelettronica S.p.A.1
  • WTWestell Technologies, Inc.1

Often classified with

  • H04MTelephonic communication3

Documents that also carry the other class.

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