JPS5563123A - Phase control circuit - Google Patents
Phase control circuitInfo
- Publication number
- JPS5563123A JPS5563123A JP13602978A JP13602978A JPS5563123A JP S5563123 A JPS5563123 A JP S5563123A JP 13602978 A JP13602978 A JP 13602978A JP 13602978 A JP13602978 A JP 13602978A JP S5563123 A JPS5563123 A JP S5563123A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- circuit
- signal
- signals
- phase difference
- 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
Links
Landscapes
- Pulse Circuits (AREA)
- Manipulation Of Pulses (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
PURPOSE: To ensure the reduction of the phase difference between the input signal and the reference signal within the fixed range in a simple constitution by selecting the delay signal of the phase approximate to the reference signal based on the output of the detection circuit.
CONSTITUTION: The phase difference between input signal A and reference signal B is reduced down within 90°, for example, without using any clock pulse. The control circuit comprises delay line 4 which delays A and obtains delay signals A1∼ A4, phase detection circuit 1 while detects the phase difference between signals A and B, and switch circuit 5 while selects signals A1∼A4 based on the signal of circuit 1. Circuit 5 selects signals A1∼A4 featuring the phase most approximate to the rise phase of signal B in accordance with Q output signals Q2 AND Q3 of D.FF2 and 3 in circuit 1. And for instance, the phase of B is in phase region ϕ1, A1 is selected; while A4 is selected in the case of ϕ4 each, and thus signal A' the phase difference of which is set within 90° to B is delivered from circuit 5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13602978A JPS5563123A (en) | 1978-11-04 | 1978-11-04 | Phase control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13602978A JPS5563123A (en) | 1978-11-04 | 1978-11-04 | Phase control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5563123A true JPS5563123A (en) | 1980-05-13 |
Family
ID=15165511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13602978A Pending JPS5563123A (en) | 1978-11-04 | 1978-11-04 | Phase control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5563123A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56120227A (en) * | 1980-01-31 | 1981-09-21 | Philips Nv | Synchronizer circuit |
JPS6011535U (en) * | 1983-06-30 | 1985-01-26 | 富士通株式会社 | Clock signal phase adjustment device |
JPS61228726A (en) * | 1985-04-02 | 1986-10-11 | Nec Corp | Oscillation output control circuit |
JPS61261918A (en) * | 1985-05-16 | 1986-11-20 | Japanese National Railways<Jnr> | Phase adjusting method for clock pulse |
JPS62269410A (en) * | 1986-05-16 | 1987-11-21 | Tokyo Optical Co Ltd | Scanning synchronizing signal generating circuit |
JPS63193280A (en) * | 1987-02-06 | 1988-08-10 | Mitsubishi Electric Corp | Image memory device |
WO1990000329A1 (en) * | 1988-06-27 | 1990-01-11 | Akira Yokomizo | Syncrhonizing-signal selection circuit and pll circuit using said selection circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5061970A (en) * | 1973-09-29 | 1975-05-27 |
-
1978
- 1978-11-04 JP JP13602978A patent/JPS5563123A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5061970A (en) * | 1973-09-29 | 1975-05-27 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56120227A (en) * | 1980-01-31 | 1981-09-21 | Philips Nv | Synchronizer circuit |
JPS6011535U (en) * | 1983-06-30 | 1985-01-26 | 富士通株式会社 | Clock signal phase adjustment device |
JPS61228726A (en) * | 1985-04-02 | 1986-10-11 | Nec Corp | Oscillation output control circuit |
JPS61261918A (en) * | 1985-05-16 | 1986-11-20 | Japanese National Railways<Jnr> | Phase adjusting method for clock pulse |
JPS62269410A (en) * | 1986-05-16 | 1987-11-21 | Tokyo Optical Co Ltd | Scanning synchronizing signal generating circuit |
JPS63193280A (en) * | 1987-02-06 | 1988-08-10 | Mitsubishi Electric Corp | Image memory device |
WO1990000329A1 (en) * | 1988-06-27 | 1990-01-11 | Akira Yokomizo | Syncrhonizing-signal selection circuit and pll circuit using said selection circuit |
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