JPS6447113A - Digital filter - Google Patents

Digital filter

Info

Publication number
JPS6447113A
JPS6447113A JP20375487A JP20375487A JPS6447113A JP S6447113 A JPS6447113 A JP S6447113A JP 20375487 A JP20375487 A JP 20375487A JP 20375487 A JP20375487 A JP 20375487A JP S6447113 A JPS6447113 A JP S6447113A
Authority
JP
Japan
Prior art keywords
input signal
fed
different time
time phase
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.)
Granted
Application number
JP20375487A
Other languages
Japanese (ja)
Other versions
JP2822376B2 (en
Inventor
Takao Yamazaki
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 JP62203754A priority Critical patent/JP2822376B2/en
Publication of JPS6447113A publication Critical patent/JPS6447113A/en
Application granted granted Critical
Publication of JP2822376B2 publication Critical patent/JP2822376B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Filters That Use Time-Delay Elements (AREA)
  • Complex Calculations (AREA)

Abstract

PURPOSE:To obtain an excellent filter without waste in the operation of an arithmetic circuit by providing a selector to the input side of a coefficient multiplier so as to select an input signal with different time phase thereby modifying the circuit configuration optionally. CONSTITUTION:An input signal from a terminal 1 is fed to multipliers 5b-5j of each stage and multiplied with an impulse coefficient fed from a ROM 9 for each sampling period of an output signal. Then the multiplied value is added by adders 6b-6j through delay circuits 7b-7j and the result is outputted from a terminal 8. Moreover, selectors 4b-4j are provided to the input of the multipliers 5b-5j, and a signal having a different time phase being the result of retarding the input signal by a delay circuit 3 is fed to the selectors 4b-4j. Thus, the input signal with different time phase is selected in a prescribed timing to configure the circuit optionally thereby eliminating the waste of operation.
JP62203754A 1987-08-17 1987-08-17 Digital filter Expired - Lifetime JP2822376B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62203754A JP2822376B2 (en) 1987-08-17 1987-08-17 Digital filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62203754A JP2822376B2 (en) 1987-08-17 1987-08-17 Digital filter

Publications (2)

Publication Number Publication Date
JPS6447113A true JPS6447113A (en) 1989-02-21
JP2822376B2 JP2822376B2 (en) 1998-11-11

Family

ID=16479284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62203754A Expired - Lifetime JP2822376B2 (en) 1987-08-17 1987-08-17 Digital filter

Country Status (1)

Country Link
JP (1) JP2822376B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02171016A (en) * 1988-12-23 1990-07-02 Nec Corp Acyclic type interpolation filter
WO2001045266A1 (en) * 1999-12-17 2001-06-21 Sakai, Yasue Digital/analog converter
WO2001045267A1 (en) * 1999-12-17 2001-06-21 Sakai, Yasue Oversampling circuit and digital/analog converter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60242717A (en) * 1984-05-17 1985-12-02 Sony Corp Fir-type digital filter
JPS62101112A (en) * 1985-10-28 1987-05-11 Sony Corp Sampling frequency conversion circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60242717A (en) * 1984-05-17 1985-12-02 Sony Corp Fir-type digital filter
JPS62101112A (en) * 1985-10-28 1987-05-11 Sony Corp Sampling frequency conversion circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02171016A (en) * 1988-12-23 1990-07-02 Nec Corp Acyclic type interpolation filter
WO2001045266A1 (en) * 1999-12-17 2001-06-21 Sakai, Yasue Digital/analog converter
WO2001045267A1 (en) * 1999-12-17 2001-06-21 Sakai, Yasue Oversampling circuit and digital/analog converter
US6486814B2 (en) 1999-12-17 2002-11-26 Yasue Sakai Digital-to-analog converter using different multiplicators between first and second portions of a data holding period
US6486813B1 (en) 1999-12-17 2002-11-26 Yasue Sakai Oversampling circuit digital/analog converter

Also Published As

Publication number Publication date
JP2822376B2 (en) 1998-11-11

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term