JPS54109361A - Variable-ratio-frequency multiplier circuit - Google Patents
Variable-ratio-frequency multiplier circuitInfo
- Publication number
- JPS54109361A JPS54109361A JP1624078A JP1624078A JPS54109361A JP S54109361 A JPS54109361 A JP S54109361A JP 1624078 A JP1624078 A JP 1624078A JP 1624078 A JP1624078 A JP 1624078A JP S54109361 A JPS54109361 A JP S54109361A
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- counter
- frequency
- period
- 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
- Manipulation Of Pulses (AREA)
Abstract
PURPOSE: To obtain a frequency multiplied at any variable ratio with its output pulse interval uniformed through accurate operation over the broad frequency range of an input signal by making the input signal into an output with M/N-time period accurately.
CONSTITUTION: A signal of period (ti) from the input terminal is applied to control circuit 2 via waveform-shaping circuit 1, and the output of this circuit 2 is applied to FF3 which sets and resets repeatedly according to period (t1) of the input signal. Further, the output of FF3 is applied to gate circuit 4 and the output of divider circuit 6 which divides a main clock of frequency (fm) of clock generator 5 by M is gated. Then, the output of circuit 4 is applied to preset counter 7 which presets by the output of circuit 2, and the output of this counter 7 is applied to output counter 10 via registers 8 and 9 under the control of circuit 2. Next, counter 10 is applied a frequency obtained by dividing the frequency of generator 5 by Nfm by divider circuit 11 and then, output signal (to) is outputted at a period when this discrete value agrees with the discrete value from counter 7.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1624078A JPS54109361A (en) | 1978-02-15 | 1978-02-15 | Variable-ratio-frequency multiplier circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1624078A JPS54109361A (en) | 1978-02-15 | 1978-02-15 | Variable-ratio-frequency multiplier circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54109361A true JPS54109361A (en) | 1979-08-27 |
Family
ID=11911026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1624078A Pending JPS54109361A (en) | 1978-02-15 | 1978-02-15 | Variable-ratio-frequency multiplier circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54109361A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5839116A (en) * | 1981-09-02 | 1983-03-07 | Japan Radio Co Ltd | Pulse generating device |
US5644288A (en) * | 1994-06-20 | 1997-07-01 | Nippondenso Co., Ltd. | Vehicle speed detecting apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040976A (en) * | 1973-07-18 | 1975-04-15 |
-
1978
- 1978-02-15 JP JP1624078A patent/JPS54109361A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040976A (en) * | 1973-07-18 | 1975-04-15 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5839116A (en) * | 1981-09-02 | 1983-03-07 | Japan Radio Co Ltd | Pulse generating device |
JPH029728B2 (en) * | 1981-09-02 | 1990-03-05 | Japan Radio Co Ltd | |
US5644288A (en) * | 1994-06-20 | 1997-07-01 | Nippondenso Co., Ltd. | Vehicle speed detecting apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5698660A (en) | Frequency measuring device | |
GB1447418A (en) | Frequency synthesiser | |
JPS54109361A (en) | Variable-ratio-frequency multiplier circuit | |
JPS5639467A (en) | Frequency-voltage converter | |
US2862185A (en) | Electronic fm/fm to analog or digital converter | |
JPS5441060A (en) | Multivibrator | |
ES467505A1 (en) | Circuit for producing a digital count representing the average value of a variable frequency | |
JPS5549029A (en) | Automatic channel selector of am receiver | |
SU978066A1 (en) | Device for analysis of periodic signals | |
JPS54108524A (en) | Color synchronizer of beam index type picture receiver | |
JPS54131809A (en) | Synthesizer receiver | |
JPS5746191A (en) | Variable voltage divider | |
JPS5510580A (en) | Electronic time striking circuit | |
JPS5693053A (en) | Measurement of delay time | |
JPS5412208A (en) | Gain-stabilized transmitter | |
JPS57135555A (en) | Phase continuous fsk modulating circuit | |
JPS551703A (en) | Programmable pulse generator | |
JPS57185707A (en) | Frequency conversion circuit | |
JPS5516587A (en) | Programmable divider | |
JPS57135554A (en) | Fsk modulator | |
JPS5397759A (en) | Phase synchronizing circuit | |
JPS53123649A (en) | Frequency-modulated transmitter | |
JPS55127735A (en) | Phase synchronizing oscillator | |
JPS5539084A (en) | Fast and slow adjusting circuit for electronic watch | |
JPS5389777A (en) | Frequency measuring apparatus |