JPS57145444A - Branching device - Google Patents

Branching device

Info

Publication number
JPS57145444A
JPS57145444A JP3091581A JP3091581A JPS57145444A JP S57145444 A JPS57145444 A JP S57145444A JP 3091581 A JP3091581 A JP 3091581A JP 3091581 A JP3091581 A JP 3091581A JP S57145444 A JPS57145444 A JP S57145444A
Authority
JP
Japan
Prior art keywords
delay
channel
branching device
branching
delay time
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
JP3091581A
Other languages
Japanese (ja)
Inventor
Takehiro Murase
Tsuruo Nunotani
Yoshitaka Yasuda
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.)
SPC Electronics Corp
Nippon Telegraph and Telephone Corp
Shimada Rika Kogyo KK
Original Assignee
SPC Electronics Corp
Nippon Telegraph and Telephone Corp
Shimada Rika Kogyo KK
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 SPC Electronics Corp, Nippon Telegraph and Telephone Corp, Shimada Rika Kogyo KK filed Critical SPC Electronics Corp
Priority to JP3091581A priority Critical patent/JPS57145444A/en
Publication of JPS57145444A publication Critical patent/JPS57145444A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To eliminate an error of delay and to prevent the overall delay characteristics, by securing a symmetrical relation between the delay time of each channel and the central frequency of the channel. CONSTITUTION:The branching device BF1 of the 1st station S1 is divided into branching filters I2, I4, I1 and I3 of even and odd channels. A delay equalizer I0 is connected between the filter I4 and an antenna A1, and a resistive terminator 5 is connected longitudinally to the filter I1. At the same time, a branching device BF2 of the 2nd station S2 is also divided into branching filters 21, 23, 22 and 24 of odd and even channels, respectively. Then a delay equalizer 25 and a resistive terminator 6 are connected longitudinally. As a result, the general delay time of both transmission and reception is equal to each channel. Furthermore the delay time characteristics of both transmitter and receiver sides are symmetrical to the central frequency of each channel.
JP3091581A 1981-03-04 1981-03-04 Branching device Pending JPS57145444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3091581A JPS57145444A (en) 1981-03-04 1981-03-04 Branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3091581A JPS57145444A (en) 1981-03-04 1981-03-04 Branching device

Publications (1)

Publication Number Publication Date
JPS57145444A true JPS57145444A (en) 1982-09-08

Family

ID=12316992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3091581A Pending JPS57145444A (en) 1981-03-04 1981-03-04 Branching device

Country Status (1)

Country Link
JP (1) JPS57145444A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533011A (en) * 1976-06-28 1978-01-12 Siemens Ag Directional radio communication system having uniform delay and attenuating characteristics for all channels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533011A (en) * 1976-06-28 1978-01-12 Siemens Ag Directional radio communication system having uniform delay and attenuating characteristics for all channels

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