JPS5510242A - Coding communication system - Google Patents

Coding communication system

Info

Publication number
JPS5510242A
JPS5510242A JP8280878A JP8280878A JPS5510242A JP S5510242 A JPS5510242 A JP S5510242A JP 8280878 A JP8280878 A JP 8280878A JP 8280878 A JP8280878 A JP 8280878A JP S5510242 A JPS5510242 A JP S5510242A
Authority
JP
Japan
Prior art keywords
output
deltam
outputs
pulse
supplied
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
JP8280878A
Other languages
Japanese (ja)
Inventor
Shiro Okamura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP8280878A priority Critical patent/JPS5510242A/en
Publication of JPS5510242A publication Critical patent/JPS5510242A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

PURPOSE:To perform narrow-band transmission by applying a special process to a sequence of codes. CONSTITUTION:A delta-modulation (DELTAM) output from a signal supply 1, comparator 2, sample pulse supply 3, pulse generator 4 and local demodulator 5 is made into a complement by complementary circuit 7 at intervals of one or several samples. Two outputs of complementary circuit 7 are supplied to selector circuit 9, where a pulse of a narrower band is selected. The DELTAM output after adequate delay process 6, on the other hand, becomes two outputs of complementer 10 in the same way as 7 and change over switch 11 for the outputs is controlled by the output of selector circuit 9 to obtain the output of 10 of a narrower band. Discrimination pulse adder 12 operating at need generates compensation DELTAM output 13 by being supplied with a code indicating the complemented part of the code selected by switch 11.
JP8280878A 1978-07-06 1978-07-06 Coding communication system Pending JPS5510242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8280878A JPS5510242A (en) 1978-07-06 1978-07-06 Coding communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8280878A JPS5510242A (en) 1978-07-06 1978-07-06 Coding communication system

Publications (1)

Publication Number Publication Date
JPS5510242A true JPS5510242A (en) 1980-01-24

Family

ID=13784702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8280878A Pending JPS5510242A (en) 1978-07-06 1978-07-06 Coding communication system

Country Status (1)

Country Link
JP (1) JPS5510242A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02119801A (en) * 1988-10-29 1990-05-07 J S Shoko Kk Attaching method for jewelry to accessory, etc.
JPH0511809U (en) * 1991-07-31 1993-02-19 京セラ株式会社 Decorative material
JP3030329U (en) * 1996-04-18 1996-10-22 有限会社ジェイ・ディ・エム Articles with gems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260003A (en) * 1975-11-13 1977-05-18 Fujitsu Ltd Converter/demodulator of constant difference modulation system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260003A (en) * 1975-11-13 1977-05-18 Fujitsu Ltd Converter/demodulator of constant difference modulation system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02119801A (en) * 1988-10-29 1990-05-07 J S Shoko Kk Attaching method for jewelry to accessory, etc.
JPH0511809U (en) * 1991-07-31 1993-02-19 京セラ株式会社 Decorative material
JP3030329U (en) * 1996-04-18 1996-10-22 有限会社ジェイ・ディ・エム Articles with gems

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