JPS57514A - Interpolation processing circuit - Google Patents

Interpolation processing circuit

Info

Publication number
JPS57514A
JPS57514A JP7324480A JP7324480A JPS57514A JP S57514 A JPS57514 A JP S57514A JP 7324480 A JP7324480 A JP 7324480A JP 7324480 A JP7324480 A JP 7324480A JP S57514 A JPS57514 A JP S57514A
Authority
JP
Japan
Prior art keywords
interpolating
signal
circuit
clock signals
rotation counter
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
JP7324480A
Other languages
Japanese (ja)
Inventor
Masao Ishigaki
Katsutoshi Mibu
Shinji Sumiyama
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 JP7324480A priority Critical patent/JPS57514A/en
Publication of JPS57514A publication Critical patent/JPS57514A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To directly obtain interpolating data with digital code signals by providing a synchronizing circuit which synchronizes interpolating clock signals and a phase modulating signal, two specific counters and a signal distributing circuit.
CONSTITUTION: In the case of interpolating the wavelength λ of the signal recorded as scale information to 1/N by using a displacement quantity detector of a phase modulation system, the following interpolation processing circuit 20 is used. Namely, a synchronizing circuit 21 which synchronizes the interpolating clock signal having an N.f0(F0 is the frequency of carrier) frequency and a phase modulating signal, an n0-rotation counter 23 and a 2n-rotation counter 24 which are set in the relation N= 2n+n0, and a signal distributing circuit 22 which distributes and supplies the interpolating clock signals to the counters 23, 24 are provided. After the interpolating clock signals existing in one period of the phase modulating circuit are counted with the n0-rotation counter 23, the remaining interpolating clock signals are counted with the 2n-rotation counter 24 and are outputted as the data signal of the complementary number of 2 of n bits.
COPYRIGHT: (C)1982,JPO&Japio
JP7324480A 1980-05-31 1980-05-31 Interpolation processing circuit Pending JPS57514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7324480A JPS57514A (en) 1980-05-31 1980-05-31 Interpolation processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7324480A JPS57514A (en) 1980-05-31 1980-05-31 Interpolation processing circuit

Publications (1)

Publication Number Publication Date
JPS57514A true JPS57514A (en) 1982-01-05

Family

ID=13512567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7324480A Pending JPS57514A (en) 1980-05-31 1980-05-31 Interpolation processing circuit

Country Status (1)

Country Link
JP (1) JPS57514A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5952711A (en) * 1982-09-20 1984-03-27 Sony Magnescale Inc Detecting circuit of displacement amount

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025818A (en) * 1973-04-06 1975-03-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025818A (en) * 1973-04-06 1975-03-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5952711A (en) * 1982-09-20 1984-03-27 Sony Magnescale Inc Detecting circuit of displacement amount
JPH0254884B2 (en) * 1982-09-20 1990-11-22 Sony Magnescale Inc

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