Multiplex broadcasting method and system
AssigneeSony Corporation
InventorHitoshi Yoshinobu
Life of this patent
Estimating the term…
Abstract
A multiplex broadcasting method and system which limits an object district for broadcasting of district information such as a commercial message relating closely to the district is disclosed. On the broadcasting station side, multiplex data such as animation are broadcast with a district code such as a postal code number added thereto. On the receiving set side, a district code of the location is registered as an identification number of the multiplex broadcast receiving set in a memory in advance, and the district code of received multiplex data separated by a data extraction circuit and the identification number stored in the memory are compared with each other. Only when they coincide with each other, an image corresponding to the received multiplex data is displayed on the receiving set.
Claims22
A multiplex broadcasting method wherein, on a broadcasting station side, sub broadcasting information is coded and then multiplexed with and broadcast together with main broadcasting information, and on a receiving side, the received multiplex broadcasting information is separated into the main broadcasting information and the coded sub broadcasting information and then the coded sub broadcasting information is decoded and outputted together with the main broadcasting information, comprising the steps of:
- adding, on the broadcasting station side, district limit information defining a geographic area to the sub broadcasting information, coding the sub broadcasting information together with the district limit information and multiplexing the coded information with the main broadcasting information;
- and
- comparing, on the receiving side, particular district limit information defining a geographic area set on the receiving side and the district limit information added to the decoded sub broadcasting information with each other and outputting the decoded sub broadcasting information when the particular district limit information and the district limit information on the decoded sub broadcasting information coincide with each other.
A receiving method for a multiplex broadcast, comprising the steps of:
- receiving multiplex broadcasting information;
- separating coded sub broadcasting information from the received multiplex broadcasting station;
- decoding the thus separated coded sub broadcasting information;
- comparing district limit information defining a geographic area included in the decoded sub broadcasting information with particular district limit information defining a geographic area;
- and
- outputting the sub broadcasting information when the comparison proves that the particular district limit information and the district limit information of the sub broadcasting information coincide with each other.
A transmitting and receiving method for a multiplex broadcast, comprising the steps of:
- adding, on the transmitting side, district limit information defining a geographic area to sub broadcasting information, coding the sub broadcasting information together with the district limit information, multiplexing the coded information with main broadcasting information, and transmitting the multiplexed broadcasting information;
- and
- receiving, on a receiving side, the multiplexed broadcasting information, separating coded sub broadcasting information from the received multiplexed broadcasting station, decoding the thus separated coded sub broadcasting information, comparing district limit information included in the decoded sub broadcasting information with particular district limit information defining a geographic area, and outputting the sub broadcasting information when the comparison proves that the particular district limit information and the district limit information of the sub broadcasting information coincide with each other.
A multiplex broadcasting system, comprising,
- a broadcasting station including means for coding sub broadcasting information together with district limit information defining a geographic area, means for multiplexing the coded information with main broadcasting information, and means for transmitting the multiplexed broadcasting information;
- and
- a receiving apparatus including means for receiving the multiplexed broadcasting information from said broadcasting station, means for separating the coded sub broadcasting information from the received multiplexed broadcasting station, means for decoding the thus separated coded sub broadcasting information, means for comparing the district limit information included in the decoded sub broadcasting information with particular district limit information defining a geographic area and allowing outputting of the sub broadcasting information when the comparison proves that the particular district limit information and the district limit information of the sub broadcasting information coincide with each other.
A receiving apparatus for a multiplex broadcast, comprising:
- receiving means for receiving multiplex broadcasting information;
- separating means for separating coded sub broadcasting information from the received multiplex broadcasting station;
- decoding means for decoding the thus separated coded sub broadcasting information;
- storage means for storing particular district limit information defining a geographic area;
- comparing means for comparing the particular district limit information stored in said storage means and district limit information defining a geographic area included in the sub broadcasting information decoded by said decoding means with each other;
- and
- means for outputting the sub broadcasting information when it is determined by said comparing means that the particular district limit information of said storage means and the district limit information of the sub broadcasting information coincide with each other.
A transmitting and receiving apparatus for a multiplex broadcast, comprising:
- a transmitting apparatus including means for adding district limit information defining a geographic area to sub broadcasting information, coding means for coding the sub broadcasting information together with the district limit information, multiplexing means for multiplexing the coded information with main broadcasting information, and transmitting means for transmitting the multiplexed broadcasting information;
- and
- a receiving apparatus comprising receiving means for receiving the multiplexed broadcasting information, separating means for separating the coded sub broadcasting information from the received multiplexed broadcasting station, decoding means for decoding the thus separated coded sub broadcasting information, storage means for storing particular district limit information defining a geographic area, comparing means for comparing the district limit information included in the decoded sub broadcasting information with the particular district limit information stored in said storage means, and outputting means for outputting the sub broadcasting information when it is determined by said comparing means that the particular district limit information and the district limit information of the sub broadcasting information coincide with each other.
Dependencies are inferred from the claim text.