Title:
PROGRAM INFORMATION TRANSMITTING DEVICE AND PROGRAM INFORMATION TRANSMITTING METHOD
Document Type and Number:
Japanese Patent JP3278618
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce processing time when a receiver performs the display, etc., of a program guide by reading version information from a selected stream, comparing it with version information stored in a memory and selecting a prescribed stream where the latest program information is transmitted based on the comparison results of the version information.
SOLUTION: A program information editing device of a transmission station transmits program information to one prescribed stream through multiplexing devices 2-1...2-n and also transmits the version information of the program information to the whole streams. A receiver selects a prescribed stream with a tuner 5 when it is started, reads the program information and the version information and stores them in a memory 10. When program guide display, etc., is performed, version information is read from an optional selected stream to compare it with the version information in the memory 10, and when they coincide, processing such as the display of a program guide is performed according to the program information in the memory 10.
Inventors:
Tamio Ohno
Application Number:
JP34931498A
Publication Date:
April 30, 2002
Filing Date:
November 25, 1998
Export Citation:
Assignee:
NC Cable Media Co., Ltd.
International Classes:
H04N5/44; (IPC1-7): H04N5/44
Domestic Patent References:
| JP8317353A | ||||
| JP495480A | ||||
| JP10174011A |
Attorney, Agent or Firm:
Shiroyuki Hori