Invention Grant
- Patent Title: Backwards compatible real-time program guide capacity increase
- Patent Title (中): 向后兼容的实时节目指南容量增加
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Application No.: US12511824Application Date: 2009-07-29
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Publication No.: US08769581B2Publication Date: 2014-07-01
- Inventor: Lawrence N. Chapman , Stephen P. Dulac , Robert G. Arsenault
- Applicant: Lawrence N. Chapman , Stephen P. Dulac , Robert G. Arsenault
- Applicant Address: US CA El Segundo
- Assignee: The DIRECTV Group, Inc.
- Current Assignee: The DIRECTV Group, Inc.
- Current Assignee Address: US CA El Segundo
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F13/00 ; H04N5/445 ; H04N21/2665 ; H04N21/462 ; H04N21/61

Abstract:
A system and method for transmitting program guide information describing a second set of programs to subscribers is disclosed. In one embodiment, the method is implemented in a network broadcasting a first signal having a first set of programs and a second signal having a second set of programs. The method comprises the steps of broadcasting first program guide information describing the first set of programs to the subscribers on a first service channel on a first signal and broadcasting second program guide information describing the second set of programs to a subset of the subscribers on the first service channel on a second signal, wherein a fundamental signal characteristic of the second signal differs from the fundamental signal characteristic of the first signal. In another embodiment, the method comprises the steps of receiving first program guide information describing the first set of programs on a first service channel on a first signal; and receiving second program guide information describing the second set of programs on the first service channel on a second signal, wherein a fundamental signal characteristic of the second signal differs from the fundamental signal characteristic of the first signal.
Public/Granted literature
- US20090293087A1 BACKWARDS COMPATIBLE REAL-TIME PROGRAM GUIDE CAPACITY INCREASE Public/Granted day:2009-11-26
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