JPS6473911A - Digital filter - Google Patents

Digital filter

Info

Publication number
JPS6473911A
JPS6473911A JP23175887A JP23175887A JPS6473911A JP S6473911 A JPS6473911 A JP S6473911A JP 23175887 A JP23175887 A JP 23175887A JP 23175887 A JP23175887 A JP 23175887A JP S6473911 A JPS6473911 A JP S6473911A
Authority
JP
Japan
Prior art keywords
delay
output
multiplication
delay elements
data
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
JP23175887A
Other languages
Japanese (ja)
Inventor
Makoto Yamada
Kentaro Odaka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP23175887A priority Critical patent/JPS6473911A/en
Publication of JPS6473911A publication Critical patent/JPS6473911A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To expand number of bits while decreasing number of delay elements by adding a multiplication output group being the result of multiplying a prescribed multiplication coefficient to outputs of a delay circuit of each stage respectively and a multiplication output obtained by multiplying 1/M<r> to the addition output so as to obtain an output data. CONSTITUTION:The number of stages (r) of the delay circuit is selected, as three, three delay element pair 41, 42, 43 and 81, 82, 83 are used respectively, and a multiplication coefficient 1/M<3> is used as the multiplication coefficient 1/M<r> (M is number of delay element) of a multiplier 7. The same bit number as the data word length of an input data Xi is used for the delay elements 41, 42, 43 and the same bit number as the data word length of an output data Qi whose bit number is expanded is used for the delay elements 81, 82, 83. Thus, the number of the delay elements is reduced in the circuit and the hardware constitution is simplified.
JP23175887A 1987-09-16 1987-09-16 Digital filter Pending JPS6473911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23175887A JPS6473911A (en) 1987-09-16 1987-09-16 Digital filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23175887A JPS6473911A (en) 1987-09-16 1987-09-16 Digital filter

Publications (1)

Publication Number Publication Date
JPS6473911A true JPS6473911A (en) 1989-03-20

Family

ID=16928571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23175887A Pending JPS6473911A (en) 1987-09-16 1987-09-16 Digital filter

Country Status (1)

Country Link
JP (1) JPS6473911A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011044772A (en) * 2009-08-19 2011-03-03 Shimadzu Corp Digital filter and material testing machine
EP3355030A1 (en) * 2017-01-31 2018-08-01 Shimadzu Corporation Material tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011044772A (en) * 2009-08-19 2011-03-03 Shimadzu Corp Digital filter and material testing machine
EP3355030A1 (en) * 2017-01-31 2018-08-01 Shimadzu Corporation Material tester

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