 Method of making fish prints, and paper and cloth used therefor |
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System for controlling updates of extended data services (EDS) data
| Details |
Inventors: Duffield, David J.; Landis, Michael D.; Edde, Gabriel A.;
Assignee: Thomson Consumer Electronics, Inc. (Indianapolis, IN)
Primary Examiner: Kostak; Victor R.
Assistant Examiner:
Attorney, Agent or Firm: Tripoli; J. S., Emanuel; Peter M., Shedd; Robert D.
A system for processing a television signal including a data component, such as extended data services data, includes a decoder for processing the data component to provide data representing time information. A control device responds to the data for modifying time information, e.g., time of day, that is maintained in the system. The time information decoded from the video signal is compared to the time information maintained in the system to determine a time difference. If the time difference is in a predetermined range, the time difference indicates that the time information from the television signal is invalid. The control device responds to the time difference being in the predetermined range by preventing modification of the time information maintained in the system. A user may provide an input via a device such as a remote control to control the manner in which the control device responds to the time difference. |
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DETAILED DESCRIPTION Referring to FIG.
1, a television receiver includes an RF input terminal 100 that receives a radio frequency (RF) signal from VCR 165 and applies the signal to a tuner assembly 102.
Tuner assembly 102 selects and amplifies a particular RF signal, i.
e.
the VCR signal for the arrangement in FIG.
1, under control of a tuner controller 104 which provides a tuning voltage via a wire 103, and bandswitching signals via signal lines represented by the broad double-ended arrow 103', to tuner assembly 102.
Tuner assembly 102 converts the received RF signal to an intermediate frequency (IF) signal and provides an IF output signal to video (VIF) and sound (SIF) amplifier and detector unit 130.
VIF/SIF amplifier and detector unit 130 amplifies the IF signal applied to its input terminal and detects the video and audio information contained therein.
The detected video information is applied as one input of a video processor unit 155.
The detected audio signal is applied to an audio processor 135 for processing and amplification before being applied to a speaker assembly 136.
Tuner controller 104 generates the tuning voltage and bandswitching signals in response to control signals applied from a system control microcomputer (.
mu.
C) 110.
The terms "microcomputer", "controller", and "microprocessor", as used herein, are equivalent.
It is also recognized that the control function of microcomputer 110 may be performed by an integrated circuit especially manufactured for that specific purpose (i.
e.
, a "custom chip"), and the term "controller", as used herein, is also intended to include such a device.
Microcomputer 110 receives user-initiated commands from an infrared (IR) receiver 122 and from a "local" keyboard 120 mounted on the television receiver itself.
IR receiver 122 receives IR transmissions from remote control transmitter 125.
Microcomputer 110 includes a central processing unit (CPU) 112, a program memory (ROM) 114, and stores channel-related data in a random-access memory (RAM) 116
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TV Signal 
