JPS57197644A - Data compressing device - Google Patents

Data compressing device

Info

Publication number
JPS57197644A
JPS57197644A JP8109981A JP8109981A JPS57197644A JP S57197644 A JPS57197644 A JP S57197644A JP 8109981 A JP8109981 A JP 8109981A JP 8109981 A JP8109981 A JP 8109981A JP S57197644 A JPS57197644 A JP S57197644A
Authority
JP
Japan
Prior art keywords
signal
circuit
peak
max
hold circuit
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
JP8109981A
Other languages
Japanese (ja)
Inventor
Keiji Kawamo
Jirou Soujima
Hiroshi Matsuda
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.)
Mitsubishi Research Institute Inc
Original Assignee
Mitsubishi Research Institute Inc
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 Mitsubishi Research Institute Inc filed Critical Mitsubishi Research Institute Inc
Priority to JP8109981A priority Critical patent/JPS57197644A/en
Publication of JPS57197644A publication Critical patent/JPS57197644A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Abstract

PURPOSE:To obtain a device that generates no blank space in its output signal even in a high frequency wave signal whose output is apt to be a singal-shot by applying sampling for it storing the max. value of the output signal for a sampling period through a peak-hold circuit. CONSTITUTION:It is arranged that sampling is applied to an input signal while storing its max. value for the sampling period through a peak-hold circuit. For instance, an input signal is subjected to branch input and converted into a mean value signal by a smoothing circuit 7. Then, a substractor circuit 8 combines the input signal 6 with the mean value signal from the smoothing circuit 7 and outputs a deviation signal which is applied to a peak-hold circuit 9. Next, the peak-hold circuit 9 converts the deviation signal into the max. value signal, with which an addor circuit 10 combines the mean value signal from the smoothing circuit 7 and outputs the result to an A/D convertor 11 through which it is converted into a digital signal and inputted to a computor 12.
JP8109981A 1981-05-29 1981-05-29 Data compressing device Pending JPS57197644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8109981A JPS57197644A (en) 1981-05-29 1981-05-29 Data compressing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8109981A JPS57197644A (en) 1981-05-29 1981-05-29 Data compressing device

Publications (1)

Publication Number Publication Date
JPS57197644A true JPS57197644A (en) 1982-12-03

Family

ID=13736931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8109981A Pending JPS57197644A (en) 1981-05-29 1981-05-29 Data compressing device

Country Status (1)

Country Link
JP (1) JPS57197644A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59201977A (en) * 1983-04-28 1984-11-15 Toyota Motor Corp Controlling method of ignition timing of engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59201977A (en) * 1983-04-28 1984-11-15 Toyota Motor Corp Controlling method of ignition timing of engine
JPH051394B2 (en) * 1983-04-28 1993-01-08 Toyota Motor Co Ltd

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