JPS54139514A - Time axis conversion circuit of signals - Google Patents
Time axis conversion circuit of signalsInfo
- Publication number
- JPS54139514A JPS54139514A JP4887378A JP4887378A JPS54139514A JP S54139514 A JPS54139514 A JP S54139514A JP 4887378 A JP4887378 A JP 4887378A JP 4887378 A JP4887378 A JP 4887378A JP S54139514 A JPS54139514 A JP S54139514A
- Authority
- JP
- Japan
- Prior art keywords
- time axis
- thru
- vco
- constitution
- frequency
- 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
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To obtain the audio signal of compressed time axis with a simple constitution by subsequently changing the clocks of two analog shift registers such as BBD, etc. according to time axis change rates.
CONSTITUTION: BBDs 25, 26 and analogs 27, 28 are subjected respectively to clock control and switch control by the constitution of a write clock circuit 30 of a frequency fw, an N frequency dividing circuit 31 of the output of the circuit 30, a VCO 32 whose oscillation frequency fr changes according to control voltage, AND gates 33 thru 36, OR gates 37, 38. The VCO 32 oscillates according to the voltages controlled by way of the analog switches 42 thru 43 which are respectively continued by the control voltage generating circuits 30 thru 41 generating specified voltages according to the time axis change rates m indicated. The switches 42 thru 43 are subsequently opened and closed by a ring counter 45 which generates outputs subsequently at each N frequency division of the VCO 32.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4887378A JPS54139514A (en) | 1978-04-20 | 1978-04-20 | Time axis conversion circuit of signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4887378A JPS54139514A (en) | 1978-04-20 | 1978-04-20 | Time axis conversion circuit of signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54139514A true JPS54139514A (en) | 1979-10-30 |
Family
ID=12815399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4887378A Pending JPS54139514A (en) | 1978-04-20 | 1978-04-20 | Time axis conversion circuit of signals |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54139514A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6164666U (en) * | 1984-09-29 | 1986-05-02 |
-
1978
- 1978-04-20 JP JP4887378A patent/JPS54139514A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6164666U (en) * | 1984-09-29 | 1986-05-02 | ||
| JPH0529520Y2 (en) * | 1984-09-29 | 1993-07-28 |
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