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.
Patent No.:
Date of Patent:
May. 31, 2005
Filed:
Dec. 28, 1999
Toshihiro Sugiura, Nisshin, JP;
Eiji Shibata, Nisshin, JP;
Toshihiro Sugiura, Nisshin, JP;
Eiji Shibata, Nisshin, JP;
Masprodenkoh Kabushikikaisha, Nisshin, JP;
Abstract
In a cable broadcasting system of the invention capable of setting output or stop of broadcasting-signals from tap output terminals of a tap device in response to a command signal transmitted by a center equipment, when demand for output setting for many tap devices occurs, output setting of the corresponding tap devices can be surely carried out without increasing the load on each power supply device for supplying the tap devices in each district with electricity. When demand for setting tap output of plural tap device occurs, a head-end controller reads output setting data for all the tap devices which are the objects of tap output setting and transmits command signals in order to tap devices at a rate of one tap device per each district covered by a power supply device. The interval of transmission of command signals to one district is controlled to be longer than or equal to the time Δtn necessary for the tap device to which a command signal was previously transmitted to finish tap output setting operation.