Enhancing operations of video tape cassette players
AssigneeIndex Systems, Inc.
InventorsHenry C. Yuen, Daniel S. Kwoh, Roy J. Mankovitz, Carl Hindman, Hing Y. Ngai
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Abstract
Operation of a video cassette player is facilitated by providing a VBI decoder which decodes information, such as title, channel, date, time and length of broadcast programs and utilizing the information in providing directory of the programs as well as control of the VCR. The video cassette player is also provided with a VBI encoder for inserting control as well as directory information into the tape, either in the VBI portions of the video track or in the control track.
Claims1
A method of displaying a directory of programs stored on home recorded (HR) and prerecorded (PR) video tapes, the method comprising the steps of:
- repeatedly storing an on tape directory of programs recorded on each PR tape directly on the same tape as the recorded programs;
- storing a directory of programs recorded on each HR tape in a random access memory (RAM);
- inserting a video tape in a video tape recorder (VCR);
- sensing whether the inserted video tape is an HR or a PR tape;
- accessing the directories stored in RAM when the inserted video tape is an HR tape to retrieve the directory for the inserted video tape;
- accessing the on tape directory when the inserted video tape is a PR tape to retrieve the directory for the inserted video tape;
- and
- displaying the retrieved directory.
Dependencies are inferred from the claim text.