JPS6119185B2 - - Google Patents
Info
- Publication number
- JPS6119185B2 JPS6119185B2 JP12738879A JP12738879A JPS6119185B2 JP S6119185 B2 JPS6119185 B2 JP S6119185B2 JP 12738879 A JP12738879 A JP 12738879A JP 12738879 A JP12738879 A JP 12738879A JP S6119185 B2 JPS6119185 B2 JP S6119185B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- balanced
- side sound
- terminal
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010408 sweeping Methods 0.000 claims 3
- 230000002265 prevention Effects 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12738879A JPS5651135A (en) | 1979-10-04 | 1979-10-04 | Antiside tone circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12738879A JPS5651135A (en) | 1979-10-04 | 1979-10-04 | Antiside tone circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5651135A JPS5651135A (en) | 1981-05-08 |
JPS6119185B2 true JPS6119185B2 (enrdf_load_stackoverflow) | 1986-05-16 |
Family
ID=14958751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12738879A Granted JPS5651135A (en) | 1979-10-04 | 1979-10-04 | Antiside tone circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5651135A (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63259285A (ja) * | 1987-04-16 | 1988-10-26 | Goriyou Sekkei Kk | ベロ−ズ弁 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5851627A (ja) * | 1981-09-24 | 1983-03-26 | Fujitsu Ltd | 平衡結線網整合方式 |
US5029203A (en) * | 1988-11-30 | 1991-07-02 | Rohm Co., Ltd. | Side tone preventive circuit for telephone |
US7298838B2 (en) | 2002-02-05 | 2007-11-20 | Texas Instruments Incorporated | Adaptive cancellation network system and method for digital subscriber line |
-
1979
- 1979-10-04 JP JP12738879A patent/JPS5651135A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63259285A (ja) * | 1987-04-16 | 1988-10-26 | Goriyou Sekkei Kk | ベロ−ズ弁 |
Also Published As
Publication number | Publication date |
---|---|
JPS5651135A (en) | 1981-05-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4555596A (en) | Loudspeaking telephones | |
AU714455B2 (en) | A hands-free communication unit having residual acoustic echo suppression means for suppressing residual echoes which have been left unremoved by an echo canceller, a bilateral communication system and a method for suppressing residual echoes | |
JPS6123902B2 (enrdf_load_stackoverflow) | ||
JPS5852376B2 (ja) | デイジタル・エコ−キヤンセラ− | |
US4274155A (en) | Multiport conference circuit with multi-frame summing and voice level coding | |
US4608464A (en) | Interface circuit interconnecting a bidirectional two-wire line with unidirectional four-wire lines | |
US4028506A (en) | Maximum value tracing circuit for digitized voice signals | |
JPS6119185B2 (enrdf_load_stackoverflow) | ||
WO1982003956A1 (en) | A capacitive dac to filter interface circuit | |
US4126766A (en) | 3-Port conference circuit for use in private automatic branch exchange | |
US4257120A (en) | Multiport conference circuit with multi-frame summing | |
US4486879A (en) | Method and apparatus for mixing low-frequency signals transmitted via different time slots towards the same telephone receiver set | |
US4254497A (en) | Multiport conference circuit with voice level coding | |
US5414763A (en) | Apparatus and method for providing echo suppression to a plurality of telephones | |
US4493949A (en) | Parallel operation of telephone equipment on a digital loop | |
SU1506592A2 (ru) | Устройство передачи и приема цифрового телевизионного сигнала | |
JPS6360935B2 (enrdf_load_stackoverflow) | ||
US6285755B1 (en) | Transmission system and transmission apparatus | |
JPS6123705B2 (enrdf_load_stackoverflow) | ||
JPH0224426B2 (enrdf_load_stackoverflow) | ||
SU1177915A1 (ru) | Переходное устройство | |
EP0059543B1 (en) | Parallel operation of telephone equipment on a digital loop | |
JP2598272B2 (ja) | 会議電話装置 | |
KR800001062B1 (ko) | 잡음 소거 시스템을 포함하는 계수기형 원격제어수신기 | |
JPH1188182A (ja) | 信号送受信回路及び携帯情報通信機器 |