The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 04, 1997

Filed:

Feb. 28, 1995
Applicant:
Inventor:

Hitoshi Yoshinobu, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
348 13 ; 348 12 ; 348 10 ; 348-7 ; 348 11 ;
Abstract

A system and method for two-way broadcast programs includes a response information transmitting apparatus, two-way broadcast receiving apparatus, and a response information receiving apparatus. The system also preferably includes a remote control transmitter for responding to requests made during the two-way broadcast programs. The difference between the time at which the response is made to a two-way broadcast program and the time at which information about the response is transmitted is added to the response information, thereby allowing the receiving side of the response information to correctly recognize the response time based on the time difference. Since the information associated with the responding operation includes the above-mentioned time difference, the responding side need not have precise time information, unlike the case in which information about the absolute response time is added. Therefore, the responding side need not manage time constantly. Furthermore, because determination is made from a time difference as opposed to an absolute time, the response destination can determine the order in which the responses have been made, while performing transmission processing in a manner so that the concentration of access attempts and thus line congestion on a particular telephone line is reduced. Such a system and method allows for the offering of such two-way broadcast programs as first-come, first-serve quiz shows which have been difficult to practice with conventional systems which use telephone lines for transmitting responses.


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