Television – Receiver circuitry
Reexamination Certificate
2005-04-28
2008-08-05
Ometz, David (Department: 2622)
Television
Receiver circuitry
C348S729000, C348S731000, C348S732000, C348S570000, C725S072000
Reexamination Certificate
active
07408593
ABSTRACT:
In a digital TV broadcast signal receiver connected to a multi-directional antenna called smart antenna, even when a user reshuffles a channel frequently, it is aimed to shorten a time delay between channel choice by the user and switching operation of the multi-directional antenna for switching signal receiving direction. Initially, sensitivities of TV broadcast signals of all receivable channels in all signal receiving directions are measured and measurement results are memorized in a memory. A signal receiving direction, in which a number of receivable channels is the largest, is decided as an optimum signal receiving direction with respect to each receivable channel. Even when the channel is reshuffled among these receivable channels, it is no need to switch the signal receiving direction of the multi-directional antenna. Consequently, the time for switching the signal receiving direction of the multi-directional antenna can be reduced even when the channels are reshuffled frequently.
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Crowell & Moring LLP
Désir Jean W
Funai Electric Co. Ltd.
Ometz David
LandOfFree
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