PIP main and subscreen selection from among TV, BS, and VCR playback signals

• US 5,315,391 A
• Filed: 12/11/1992
• Issued: 05/24/1994
• Est. Priority Date: 12/11/1991
• Status: Expired due to Term

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Jun H.
• Primary Examiner(s): Kostak, Victor R.
• Assistant Examiner(s): Miller, John W.
• Application Number:
  US07/989,591
• Time in Patent Office: 529 Days
• Field of Search: 358/188, 358/183, 358/181, 358/191.1, 358/194.1, 358/254, 358/189, 358/22 PIP, 358/22
• US Class Current: 348/553
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver

Abstract

A TV receiver with built-in multiple functions such as TV, PIP, and VCR functions, is disclosed. The TV receiver processes a PIP signal in response to switching control by a microcomputer without using a separate tuner for PIP processing, and causes picture and audio signals to be selected for main and subscreen displays by controlling switches using a single microcomputer.

Claims

1. A TV receiver with built-in multiple functions comprising:

a TV tuner for tuning conventional TV signals;

a TV signal processing means for processing signals from said TV tuner;

a PIP signal processing means for processing PIP signals, said PIP signal processing means having a clock generator for generating clock pulses;

a BS signal processing means for processing BS signals;

a VCR signal processing means for processing VCR signals and including a VCR;

a microcomputer (MICOM) for controlling each said signal processing means;

TV main screen selection means responsive to control of said MICOM and connected to said TV signal processing means, BS picture signal processing means and VCR signal processing means and said MICOM, for selecting and displaying as the main screen display a signal from among a TV picture signal, a BS picture signal, and a VCR playback signal generated by said TV, BS and VCR signal processing sections, respectively, and for selecting a subscreen signal from among a TV picture signal, a BS picture signal, and a VCR playback signal generated by said TV, BS and VCR signal processing sections, respectively;

TV subscreen selection means responsive to control of said MICOM and connected to said TV main screen selection means, said PIP signal processing means and said MICOM, for displaying said selected sunscreen signal as a PIP or subscreen display within said TV main screen display, said PIP screen being output to said TV subscreen selection means and read out at a clock rate provided by the clock pulses from said clock generator;

audio output and recording signal selection means responsive to control of said MICOM and connected to said TV signal processing means, BS signal processing means and said MICOM, for selecting an audio signal to be recorded on said VCR and for providing said audio signal to said VCR signal processing means, said audio signal to be recorded being selected from among the audio signals associated with said TV signal and said BS signal; and

audio output means responsive to control of said MICOM and connected to said TV signal processing means, said BS signal processing means, said VCR signal processing means, and said MICOM, for providing an audio signal output selected from audio signals associated with said TV signal, said Bs signal, and the audio recorded on said VCR.

2. A TV system comprising:

a TV signal processing means, including a tuner, for providing conventional TV signals;

a broadcast signal (BS) processing means, including a tuner, for providing BS TV signals;

a VCR means for recording first TV signals supplied thereto from a selected one of said conventional TV signals and said BS TV signals and for reproducing second TV signals recorded thereon;

a PIP processing means for receiving one of first and second TV signals and generating PIP SIGNALS therefrom, said PIP processing not having separate tuner means;

TV display circuitry;

first switching means connected to receive said conventional TV signals, said BS TV signals, and said second signals for selectively connecting one of said received signals for display on said TV display circuitry as a main screen signal and for selectively connecting one of said received signals to said PIP processing means for processing as a subscreen signal;

second switching means, connected to said first switching means to receive the output therefrom selected as said main screen signal and connected to said PIP processing means to receive said PIP signals, for selectively superimposing said PIP signals as a subscreen signal on a portion of said main screen signal;

third switching means connected to said first switching means for selectively passing one of the main screen signals and subscreen signals to said VCR means for recording thereon; and

microcomputer means connected to said first through third switching means for controlling the selection within each said switching means.