Multi scanning TV processor IC

Author

Berland, P.A. ; Berger, Ph ; Rufray, J.C.

Author_Institution

Thomson Consumer Electron. Res. & Dev. Lab., Strasbourg, France

Volume

35

Issue

3

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

315

Lastpage

318

Abstract

A novel concept for a microprocessor-controlled deflection processor intended for a microprocessor-controlled TV receiver or monitor is described. This concept is implemented in an IC providing horizontal and vertical control signals, switched-mode power supply (SMPS) control pulses, and the usual identification or synchronization signals. This IC receives standard TV video signals at 16 kHz, 50/60 Hz and delivers line, field, and SMPS drive signals at the same frequency or at the doubled frequency 32 kHz, 50/60 Hz or 100/120 Hz. Doubling of line and/or field frequency is necessary in double-scanning or flicker-free TV concepts. The setting of picture geometry parameters and SMPS adjustment is accomplished by a microprocessor over a bus. This approach greatly reduces component count

Keywords

colour television receivers; computerised picture processing; digital signal processing chips; microprocessor chips; telecommunications computer control; video signals; 100 Hz; 120 Hz; 16 kHz; 32 kHz; 50 Hz; 60 Hz; SMPS; bus; control pulses; field frequency; flicker-free TV; horizontal control signals; identification signal; microprocessor-controlled TV receiver; microprocessor-controlled deflection processor; monitor; multiscanning TV processor IC; picture geometry parameters; standard TV video signals; switched-mode power supply; synchronization signals; vertical control signals; Frequency synchronization; Microprocessors; Pulse circuits; Pulse generation; Pulse width modulation; Signal generators; Signal processing; Switched-mode power supply; TV; Timing;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.44286

Filename

44286