JPS5549051A - Pcm data signal separation system - Google Patents

Pcm data signal separation system

Info

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
Application number
JP12148878A
Other languages
Japanese (ja)
Inventor
Yoshitaka Katayama
Daiki Nabeshima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12148878A priority Critical patent/JPS5549051A/en
Publication of JPS5549051A publication Critical patent/JPS5549051A/en
Pending legal-status Critical Current

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
JP12148878A 1978-10-04 1978-10-04 Pcm data signal separation system Pending JPS5549051A (en)

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)

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