TELEVISION RECEIVER HAVING USER-EDITABLE TELEPHONE SYSTEM CALLER-ID FEATURE

摘要

PURPOSE: A low-power processor is provided for a high speed and low power consumption by realizing substrate bias control of a processor chip which is applied to various operation modes of the processor. CONSTITUTION: A television receiver includes a telephone network interface circuitry that allows the receiver to receive and process Caller-ID signals for display during a telephone set is ringing. The television receiver also includes a circuitry that allows a list of priority callers to be entered. Incoming Caller-ID codes are compared to telephone numbers of priority callers. Upon detection, the Caller-ID information of the priority caller is displayed on screen during television viewing. The telephone numbers of not listed callers as the priority callers are not displayed during the ringing period of the telephone. Both displayed and non-displayed telephone numbers are stored in a Caller-ID list for display at user's convenience. Thus, the user is able to enter data to select beforehand which calling telephone numbers are permitted to interrupt his or her television show by displaying Caller-ID information on the screen.