Patent · US Expired

Television receiver equipped for simultaneously showing several programs

US4139860A · kind A · utility

257Cited by

4References

10Claims

0Family size

Assignee

ITT Industries · US

Inventors

Ljubomir Micic · Glückstadt, DE
Hermannus Schat · Glückstadt, DE
Laurin C. Freyberger · Balingen, DE
Manfred Ullrich · Bensberg, DE

Key dates

Filing date	Jun 15, 1977
Grant date	Feb 13, 1979
Priority date	—
Expiry date	Jun 15, 1997

Classification

Technology area (CPC H)Electricity
CPC primaryH04N5/45
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

This relates to apparatus for the "picture on picture" or "program check" project. Storage, storage control circuits and clock signal generators are disclosed. The storage consists of two parts which are simultaneously fed by selected lines of the second program.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.