JPS5488108A - Digital signal generating system - Google Patents
Digital signal generating systemInfo
- Publication number
- JPS5488108A JPS5488108A JP15710477A JP15710477A JPS5488108A JP S5488108 A JPS5488108 A JP S5488108A JP 15710477 A JP15710477 A JP 15710477A JP 15710477 A JP15710477 A JP 15710477A JP S5488108 A JPS5488108 A JP S5488108A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reference level
- circuit
- level signal
- reproduction
- 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 For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To obviate degreasing of discrimination ability by generating digital signals having a reference level signal of an amplitude larger than the amplitude of the digital signals to be modulated.
CONSTITUTION: A reference level signal detection circuit 19 is inputted with the reproduction digital signal from an automatic gain control circuit 16 and the reproduction horizontal synchronizing signal out of the composite synchronizing signal from a synchronous separator circuit 21 and detects the presence or not of the reference level signal C in the reproduction digital signal. The output detection signal of this reference level signal detecting circuit 19 is applied to a gate circuit 18. The gate circuit 18 detects the presence of the reference level signal C and supplies the reproduction digital signal to a memory circuit 23 constituted by RAM, etc. when the detection signal thus obtained is applied. On the other hand, it cuts off the supply when there is no reference level signal C.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15710477A JPS5488108A (en) | 1977-12-26 | 1977-12-26 | Digital signal generating system |
US05/971,004 US4246615A (en) | 1977-12-16 | 1978-12-15 | System for recording and/or reproducing an audio signal which has been converted into a digital signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15710477A JPS5488108A (en) | 1977-12-26 | 1977-12-26 | Digital signal generating system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5488108A true JPS5488108A (en) | 1979-07-13 |
Family
ID=15642311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15710477A Pending JPS5488108A (en) | 1977-12-16 | 1977-12-26 | Digital signal generating system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5488108A (en) |
-
1977
- 1977-12-26 JP JP15710477A patent/JPS5488108A/en active Pending
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