JPS57112148A - System for multiplexing digital signal - Google Patents

System for multiplexing digital signal

Info

Publication number
JPS57112148A
JPS57112148A JP18724580A JP18724580A JPS57112148A JP S57112148 A JPS57112148 A JP S57112148A JP 18724580 A JP18724580 A JP 18724580A JP 18724580 A JP18724580 A JP 18724580A JP S57112148 A JPS57112148 A JP S57112148A
Authority
JP
Japan
Prior art keywords
group
clock
frequency
digital
digital signal
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
JP18724580A
Other languages
Japanese (ja)
Inventor
Takeo Fukushima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18724580A priority Critical patent/JPS57112148A/en
Publication of JPS57112148A publication Critical patent/JPS57112148A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H04J3/047—Distributors with transistors or integrated circuits

Abstract

PURPOSE:To synchronize devices with each other in the frame position, by dividing the frequency of a clock signal transmitting from a higher group multiplexer to obtain a clock signal of a lower group. CONSTITUTION:In the digital signal multiplexing system where the lower group of digital signals to a higher group, the clock frequency of the lower group is set to the 1/P of the clock frequency of the higher group to synchronize devices with each other in the frame position. A clock signal fB from a clock pulse generator 25 of a digital multiplexing device 14 of the higher group is divided to fB/P by a frequency divider 24 and is transmitted to digital transmission devices 11, 12, and 13 of the lower group.
JP18724580A 1980-12-29 1980-12-29 System for multiplexing digital signal Pending JPS57112148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18724580A JPS57112148A (en) 1980-12-29 1980-12-29 System for multiplexing digital signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18724580A JPS57112148A (en) 1980-12-29 1980-12-29 System for multiplexing digital signal

Publications (1)

Publication Number Publication Date
JPS57112148A true JPS57112148A (en) 1982-07-13

Family

ID=16202581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18724580A Pending JPS57112148A (en) 1980-12-29 1980-12-29 System for multiplexing digital signal

Country Status (1)

Country Link
JP (1) JPS57112148A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61125240A (en) * 1984-11-20 1986-06-12 Toyo Commun Equip Co Ltd System split system in pcm communication
JPS61125239A (en) * 1984-11-20 1986-06-12 Toyo Commun Equip Co Ltd System multiplexing system in pcm communication
JPS6485435A (en) * 1987-09-28 1989-03-30 Hitachi Ltd Data signal speed changing circuit
JPH0719466A (en) * 1993-07-01 1995-01-20 Rinnai Corp Battery power supply-type combustor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61125240A (en) * 1984-11-20 1986-06-12 Toyo Commun Equip Co Ltd System split system in pcm communication
JPS61125239A (en) * 1984-11-20 1986-06-12 Toyo Commun Equip Co Ltd System multiplexing system in pcm communication
JPS6485435A (en) * 1987-09-28 1989-03-30 Hitachi Ltd Data signal speed changing circuit
JPH0719466A (en) * 1993-07-01 1995-01-20 Rinnai Corp Battery power supply-type combustor

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