JPS6441339A - Coding transmission system - Google Patents

Coding transmission system

Info

Publication number
JPS6441339A
JPS6441339A JP19637087A JP19637087A JPS6441339A JP S6441339 A JPS6441339 A JP S6441339A JP 19637087 A JP19637087 A JP 19637087A JP 19637087 A JP19637087 A JP 19637087A JP S6441339 A JPS6441339 A JP S6441339A
Authority
JP
Japan
Prior art keywords
circuit
time slot
assignment signal
slot assignment
channel
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
JP19637087A
Other languages
Japanese (ja)
Inventor
Kazuo Harakawa
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
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 filed Critical NEC Corp
Priority to JP19637087A priority Critical patent/JPS6441339A/en
Publication of JPS6441339A publication Critical patent/JPS6441339A/en
Pending legal-status Critical Current

Links

Landscapes

  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To contrive the increase of the line number in response to the frequency of communication by applying high efficiency coding in response to the decision of propriety of a coding/decoding function and applying the channel assignment so as to send the result together with a time slot assignment signal and alarm information of decoding function. CONSTITUTION:A channel assignment circuit 9 uses a time slot assignment signal so as to apply proper arrangement and conversion to a coded data from a PCM/ADPCM conversion circuit 6 of each channel in the operating state, or a uncoded data from PCM signal input terminals 1, 2 and a signaling from a signaling extraction circuit 3. Moreover, a time slot assignment signal insertion circuit 10 inserts the time slot assignment signal from an assignment signal generating circuit 8 in a generated data string. Moreover, a reception side alarm information insertion circuit 11 inserts fault detection information outputted from the fault detection circuit 18 into a data string outputted from a time slot assignment signal insertion circuit 10. Thus, the increase in the line number is attained in term of frequent communication.
JP19637087A 1987-08-07 1987-08-07 Coding transmission system Pending JPS6441339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19637087A JPS6441339A (en) 1987-08-07 1987-08-07 Coding transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19637087A JPS6441339A (en) 1987-08-07 1987-08-07 Coding transmission system

Publications (1)

Publication Number Publication Date
JPS6441339A true JPS6441339A (en) 1989-02-13

Family

ID=16356730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19637087A Pending JPS6441339A (en) 1987-08-07 1987-08-07 Coding transmission system

Country Status (1)

Country Link
JP (1) JPS6441339A (en)

Similar Documents

Publication Publication Date Title
GB1512700A (en) Data transmission
MY121639A (en) Method and apparatus for encoding and decoding information signals
TW335581B (en) Communication system and communication method
CA2020084A1 (en) Voice coding/decoding system having selected coders and entropy coders
CA1263708C (en) Method and receiver for receiving messages sent by radio
NL183862C (en) TELECOMMUNICATIONS SYSTEM WITH CODED MESSAGE TRANSMISSION.
EP0004759A3 (en) Methods and apparatus for encoding and constructing signals
US4048448A (en) Multiparty telephone ringing
GB8332420D0 (en) Remote surveillance of equipment on digital transmission link
JPS55137761A (en) Composite private unit
JPS6441339A (en) Coding transmission system
GB9008374D0 (en) Communication system
JPS54145415A (en) Hybrid terminal equipment
DE3472742D1 (en) Method for encrypted information transmission
GB2338382B (en) Method of serial data communication
JPS5733865A (en) Storing system of remote switchboard
ES8207394A1 (en) Multiple line telephone instrument
JPS5789348A (en) Modulating and demodulating device
JPS5683163A (en) Encoding system
JPS56122268A (en) Digital signal system for exchange
JPS56134869A (en) Communication control system
JPS53126201A (en) Time-division two-wire transmission system of start-stop synchronous terminal circuit
JPS6420736A (en) Receiver
JPS57103446A (en) Encoding and decoding system for block companding
JPS5754455A (en) Code transmission system