JPS5783937A - Two-way repeater - Google Patents

Two-way repeater

Info

Publication number
JPS5783937A
JPS5783937A JP15973580A JP15973580A JPS5783937A JP S5783937 A JPS5783937 A JP S5783937A JP 15973580 A JP15973580 A JP 15973580A JP 15973580 A JP15973580 A JP 15973580A JP S5783937 A JPS5783937 A JP S5783937A
Authority
JP
Japan
Prior art keywords
group
low
amplifier
distortion
band
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.)
Pending
Application number
JP15973580A
Other languages
Japanese (ja)
Inventor
Eiji Aoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15973580A priority Critical patent/JPS5783937A/en
Publication of JPS5783937A publication Critical patent/JPS5783937A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits
    • H04B3/38—Repeater circuits for signals in two different frequency ranges transmitted in opposite directions over the same transmission path

Abstract

PURPOSE:To facilitate the design of a filter while setting a distortion return center frequency, band width and loss, by providing a distortion return filter independently. CONSTITUTION:Low-pass filters 3 and 16 and a low-frequency amplifier 5 constitute a low-group signal path, and high-pass filters 7 and 17 and a high-frequency amplifier 6 constitute a high-group signal path. Between input and output terminals of the low-group amplifier 5 and high-group amplifier 6, band-pass filters 18 and 19 are connected; and a distortion signal generated at the output of the low-group is returned to the input side of the high-group amplifier 6 through the band-pass filter 19, and a distortion signal generated at the output of the high-group amplifier 6 is returned to the input side of the loq-group amplifier 5 through a band-pass filter 18. Consequently, since it is unnecessary to provide the low-pass filter 16 and high-pass filter 17 with (windows) for the distortion signals, the design is facilitated and the frequency, etc., of a monitoring distortion signal is set freely.
JP15973580A 1980-11-13 1980-11-13 Two-way repeater Pending JPS5783937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15973580A JPS5783937A (en) 1980-11-13 1980-11-13 Two-way repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15973580A JPS5783937A (en) 1980-11-13 1980-11-13 Two-way repeater

Publications (1)

Publication Number Publication Date
JPS5783937A true JPS5783937A (en) 1982-05-26

Family

ID=15700120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15973580A Pending JPS5783937A (en) 1980-11-13 1980-11-13 Two-way repeater

Country Status (1)

Country Link
JP (1) JPS5783937A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61234628A (en) * 1985-04-10 1986-10-18 Aichi Denshi Kk Relay amplifier for two-way wire communication system
US6515515B1 (en) * 1997-11-20 2003-02-04 International Business Machines Corporation Bidirectional data transfer path having increased bandwidth

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61234628A (en) * 1985-04-10 1986-10-18 Aichi Denshi Kk Relay amplifier for two-way wire communication system
US6515515B1 (en) * 1997-11-20 2003-02-04 International Business Machines Corporation Bidirectional data transfer path having increased bandwidth

Similar Documents

Publication Publication Date Title
JPS57211812A (en) Wide band amplifier
CA2042950A1 (en) Automatic power control circuit for use with a radio telecommunication apparatus
JPS5783937A (en) Two-way repeater
FR2509500B1 (en)
JPS5420638A (en) Polarized filter
JPS57148403A (en) Branching filter
JPS5643801A (en) Band-pass filter
JPS5779725A (en) Digital filter
ATE6010T1 (en) FILTERS MATCHED BY SWITCHING AND USE IN AN EQUALIZATION CIRCUIT OF A MAGNETIC RECORDING DEVICE.
JPS6417519A (en) Interference wave suppressing system
JPS5574228A (en) Audio tone adjusting unit
JPS5772435A (en) Two-way repeater for leakage coaxial cable
JPS57140058A (en) Demodulation system for phase displacement modulation signal
JPS57206108A (en) Bi-directional amplifier
JPS5324252A (en) Frequency band amplifier circuit
SU566558A1 (en) Bioelectric signal amplifier
JPS57104389A (en) Trap circuit
SU792556A1 (en) Active filter
FR2450460A1 (en) Electrostatic field detector - has antenna responding to field and connected to amplifier of high input impedance
SU660198A1 (en) Ladder-type band-pass filter with multi-loop frequency-independent feedback
JPS5617504A (en) Narrow-band delay addition amplifying circuit using surface wave filter
EDWARDS et al. Filtering device(removing electromagnetic noise from voice communication signals)[Patent]
JPS5545234A (en) Band pass filter
JPS56154835A (en) Noise reduction circuit
JPS5683114A (en) Amplifier with selectivity