JPS5549051A - Pcm data signal separation system - Google Patents
Pcm data signal separation systemInfo
- Publication number
- JPS5549051A JPS5549051A JP12148878A JP12148878A JPS5549051A JP S5549051 A JPS5549051 A JP S5549051A JP 12148878 A JP12148878 A JP 12148878A JP 12148878 A JP12148878 A JP 12148878A JP S5549051 A JPS5549051 A JP S5549051A
- Authority
- JP
- Japan
- Prior art keywords
- data signal
- signal
- pcm data
- supplied
- reference signal
- 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
Abstract
PURPOSE: To make it possible to separate and demodulate accurately a PCM data signal transmitted in the form of a false TV signal, by forming a reference signal for amplitude discrimination on the basis of peak values of a data signal and synchronizing signal.
CONSTITUTION: A false TV signal received is amplified 41 before direct-current reproduction 42, and then applied to one input terminal of amplitude discriminator 44 through buffer 43. At this time, an output from circuit 43 is supplied to peak- value detection circuit 49 composed of diodes 45 and 46 and capacitors 47 and 48, where peak values of a PCM data signal and synchronizing signal are detected respectively. Then, detection signals are supplied to voltage-dividing resistance 52 through transistors 50 and 51 to generate a direct-current reference signal, which is supplied to the other input terminal of amplitude discriminator 44. As a result, the reference signal varied with the data signal, so that reproduction of a PCM data signal with the best eye pattern can be attained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12148878A JPS5549051A (en) | 1978-10-04 | 1978-10-04 | Pcm data signal separation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12148878A JPS5549051A (en) | 1978-10-04 | 1978-10-04 | Pcm data signal separation system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5549051A true JPS5549051A (en) | 1980-04-08 |
Family
ID=14812395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12148878A Pending JPS5549051A (en) | 1978-10-04 | 1978-10-04 | Pcm data signal separation system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5549051A (en) |
-
1978
- 1978-10-04 JP JP12148878A patent/JPS5549051A/en active Pending
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