Invention Grant
US4849818A Television receiver with receiving devices for processing videotext and
teletext signals
失效
具有用于处理视频文字和图文信号的接收装置的电视接收机
- Patent Title: Television receiver with receiving devices for processing videotext and teletext signals
- Patent Title (中): 具有用于处理视频文字和图文信号的接收装置的电视接收机
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Application No.: US240433Application Date: 1988-09-01
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Publication No.: US4849818APublication Date: 1989-07-18
- Inventor: Uwe Hartmann , Udo Mai , Fritz Ohnemus
- Applicant: Uwe Hartmann , Udo Mai , Fritz Ohnemus
- Applicant Address: DEX Villingen
- Assignee: Deutsche Thomson-Brandt GmbH
- Current Assignee: Deutsche Thomson-Brandt GmbH
- Current Assignee Address: DEX Villingen
- Priority: DEX3517698 19850517
- Main IPC: H04L5/14
- IPC: H04L5/14 ; H04N5/445
Abstract:
A television set with videotext and/or teletext decoders having character generators which are synchronized by the deflection generators of the television set and in which audio will be forwarded only when an authorized television signal is being received and in that a memory in the decoder will be accessible to display a recognizable image even when the television transmitter is turned off.
Public/Granted literature
- US5422237A Methine compound and silver halide photographic material comprising the same Public/Granted day:1995-06-06
Information query
