Television receiver including playback mode for storing screen image information for predetermined time to reproduce and its method

A display method for use with a television receiver, comprising the steps of:

• displaying a television signal as an ordinary screen image;
• storing, in concurrence with the ordinary screen display of the television signal, the television signal for a predetermined period of time repeatedly in an overwriting fashion;
• displaying in a subordinate screen, during the ordinary screen display of the television signal, the stored television signal from a point of time which is a predetermined playback period of time preceding a current time to a point of the current time;
• alternatively displaying the television signal ranging from the point related to the predetermined playback period of time to the current point in a primary screen and the ordinary screen image in the subordinate screen;
• and
• restoring the ordinary screen display of the television signal after displaying the television signal ranging from the point related to the predetermined playback period of time to the current point.

A display method for use with a television receiver, comprising the steps of:

• display a television signal as an ordinary screen image;
• storing, in concurrence with the ordinary screen display of the television signal, the television signal for a predetermined period of time repeatedly in an overwriting fashion;
• specifying an arbitrary playback period of time preceding a current time within the predetermined period of time for the overwrite storage;
• displaying in a subordinate screen, after lapse of the playback period of time during the ordinary screen display of the television signal, the stored television signal from a point of time which is a predetermined playback period of time preceding a current time to a point of the current time;
• alternatively displaying the television signal ranging from the point related to the predetermined playback period of time to the current point in a primary screen and the ordinary screen image in the subordinate screen;
• and
• restoring the ordinary screen display of the television signal after displaying the television signal ranging from the point related to the predetermined playback period of time to the current point.

A display method for use with a television receiver, comprising the steps of:

• displaying a television signal as an ordinary screen image in a primary screen;
• storing, in concurrence with the ordinary screen display of the television signal, the television signal for a predetermined period of time repeatedly in an overwriting fashion;
• displaying, during the display of the ordinary screen image, the television signal stored for a predetermined time at an arbitrary point of time as a still picture in a subordinate screen;
• displaying in the subordinate screen, at a time-shift point after the arbitrary point of time, the television signal stored for a predetermined time after the arbitrary point of time in association with the time-shift;
• displaying alternatively the television signal stored for the predetermined time in a range from the arbitrary point of time to a current point in the primary screen and the ordinary screen image in the subordinate screen;
• and
• restoring the ordinary screen display after displaying the television signal stored for a predetermined time ranging from the arbitrary point of time to the time-shift point of time.

A display method for use with a television receiver, comprising the steps of:

• displaying a television signal as an ordinary screen image in a primary screen;
• storing, in concurrence with the ordinary screen display of the television signal, the television signal for a predetermined period of time repeatedly in an overwriting fashion;
• specifying an arbitrary time-shift period of time associated with the predetermined period of time beginning at a current time;
• displaying in a subordinate screen, after lapse of the time-shift period of time, within the ordinary screen image of the television signal, the television signal stored during the time-shift period of time in the overwriting fashion;
• alternatively displaying the television signal stored in the overwriting fashion during the time-shift period of time in the primary screen and the ordinary screen image in the subordinate screen;
• and
• restoring the ordinary screen image of the television signal after displaying the television signal stored during the time-shift period of time.