JPS5614743A - Signal transmitter - Google Patents

Signal transmitter

Info

Publication number
JPS5614743A
JPS5614743A JP9134179A JP9134179A JPS5614743A JP S5614743 A JPS5614743 A JP S5614743A JP 9134179 A JP9134179 A JP 9134179A JP 9134179 A JP9134179 A JP 9134179A JP S5614743 A JPS5614743 A JP S5614743A
Authority
JP
Japan
Prior art keywords
transmission
circuit
reception
word
decision
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
JP9134179A
Other languages
Japanese (ja)
Inventor
Kiyoshi Kawana
Shozo Shirasaki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9134179A priority Critical patent/JPS5614743A/en
Publication of JPS5614743A publication Critical patent/JPS5614743A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0079—Receiver details
    • H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To improve the efficiency of transmission without making a decision on a step-out immediately by providing the method of holding word synchronism even in case that a transmission error occurs in a reception-synchronizing code in transmission of vehicle sensing pulses with the time-division multiplex system. CONSTITUTION:Input information from a vehicle sensor at a transmission part is sampled by parallel-series converting circuit 2 and coded in transmission format and the coded information is sent to circuit 4 after frequency-shift modulation 3. A received signal from circuit 4, on the other hand, is demodulated by demodulator 5 and timing generating circuit 11 corrects a word-synchronous counter; and data right before it are parity-checked at 9 successively and when normal reception is confirmed, word synchronism is established while receivable signal 12 is generated. Then continuous error detecting circuit 13 never makes a decision on a step-out immediately even in case that a transmission error occurs in reception-synchronizing codes and, when parity check signal 18, etc., can not be obtained for more than a certain period, regards that as the step-out, improving the efficiency of transmission.
JP9134179A 1979-07-18 1979-07-18 Signal transmitter Pending JPS5614743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9134179A JPS5614743A (en) 1979-07-18 1979-07-18 Signal transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9134179A JPS5614743A (en) 1979-07-18 1979-07-18 Signal transmitter

Publications (1)

Publication Number Publication Date
JPS5614743A true JPS5614743A (en) 1981-02-13

Family

ID=14023710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9134179A Pending JPS5614743A (en) 1979-07-18 1979-07-18 Signal transmitter

Country Status (1)

Country Link
JP (1) JPS5614743A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6178239A (en) * 1984-09-25 1986-04-21 Nec Corp Frame synchronizing circuit
JPS61161045A (en) * 1985-01-08 1986-07-21 Mitsubishi Electric Corp Frame synchronizing circuit
JPS6449450A (en) * 1987-08-20 1989-02-23 Victor Company Of Japan Header detecting method
FR2674023A1 (en) * 1991-03-02 1992-09-18 Daimler Benz Ag POCEDE FOR DETECTING THE INTERFERENCE OF THE OPERATION OF A MOTOR VEHICLE.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6178239A (en) * 1984-09-25 1986-04-21 Nec Corp Frame synchronizing circuit
JPS61161045A (en) * 1985-01-08 1986-07-21 Mitsubishi Electric Corp Frame synchronizing circuit
JPH0528539B2 (en) * 1985-01-08 1993-04-26 Mitsubishi Electric Corp
JPS6449450A (en) * 1987-08-20 1989-02-23 Victor Company Of Japan Header detecting method
FR2674023A1 (en) * 1991-03-02 1992-09-18 Daimler Benz Ag POCEDE FOR DETECTING THE INTERFERENCE OF THE OPERATION OF A MOTOR VEHICLE.
US5396422A (en) * 1991-03-02 1995-03-07 Mercedes-Benz Ag Method for detecting malfunctions in a motor vehicle

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