JPS55918A - Linear deltam digital addition system - Google Patents

Linear deltam digital addition system

Info

Publication number
JPS55918A
JPS55918A JP7293278A JP7293278A JPS55918A JP S55918 A JPS55918 A JP S55918A JP 7293278 A JP7293278 A JP 7293278A JP 7293278 A JP7293278 A JP 7293278A JP S55918 A JPS55918 A JP S55918A
Authority
JP
Japan
Prior art keywords
code
digital
output
arithmetic
linear
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.)
Granted
Application number
JP7293278A
Other languages
Japanese (ja)
Other versions
JPS5952466B2 (en
Inventor
Hideyuki Koike
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP53072932A priority Critical patent/JPS5952466B2/en
Publication of JPS55918A publication Critical patent/JPS55918A/en
Publication of JPS5952466B2 publication Critical patent/JPS5952466B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE: To make it possible to sum the M-number analog siganls, converted into a linear ΔM code string, through digital arithmetic by composing the system of two integrating methods, a coefficient addition part and code decision part.
CONSTITUTION: Two ΔM code strings [ai] and [bi] inputted to digital signal input terminals 1 and 1' are converted into momentary value At or Bt through two stages of digital integration parts 4 and 5 or 6 and 7. Simultaneously, output ΔM code string [ci] appearing at ΔM code output terminal 12 is also integrated by digital integration parts 8 and 9 to obtain integration output Mt of the 1st stage and Dt of the 2nd stage. In digital integration parts 4 to 9, the asddition of an integral value one sample before, obtained by delaying by an interval of one sample in each delay function part 3, to a present input is repeated to perform the digital integration of input. Next, coefficient addition part 10 processes the arithmetic of At+Bt- Dt-Mt and code decision part 11 makes a decision on whether the arithmetic result is positive or negative; "1" when it is positive and "-1" when negative are outputted at every sampling period, which forms output ΔM code string [ci].
COPYRIGHT: (C)1980,JPO&Japio
JP53072932A 1978-06-16 1978-06-16 Linear ΔM digital addition method Expired JPS5952466B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53072932A JPS5952466B2 (en) 1978-06-16 1978-06-16 Linear ΔM digital addition method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53072932A JPS5952466B2 (en) 1978-06-16 1978-06-16 Linear ΔM digital addition method

Publications (2)

Publication Number Publication Date
JPS55918A true JPS55918A (en) 1980-01-07
JPS5952466B2 JPS5952466B2 (en) 1984-12-19

Family

ID=13503621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53072932A Expired JPS5952466B2 (en) 1978-06-16 1978-06-16 Linear ΔM digital addition method

Country Status (1)

Country Link
JP (1) JPS5952466B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02260589A (en) * 1989-03-31 1990-10-23 Power Reactor & Nuclear Fuel Dev Corp Optical waveguide type infrared raman laser

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01181764A (en) * 1988-01-14 1989-07-19 Q P Corp Liquid seasoning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02260589A (en) * 1989-03-31 1990-10-23 Power Reactor & Nuclear Fuel Dev Corp Optical waveguide type infrared raman laser

Also Published As

Publication number Publication date
JPS5952466B2 (en) 1984-12-19

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