Invention Grant
- Patent Title: Receiving apparatus and receiving method for channel switching in both digital and analog TV reception
- Patent Title (中): 数字和模拟电视接收中的信道切换接收装置和接收方法
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Application No.: US11368696Application Date: 2006-03-07
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Publication No.: US07782406B2Publication Date: 2010-08-24
- Inventor: Hitoshi Akiyama , Takatoshi Shirosugi
- Applicant: Hitoshi Akiyama , Takatoshi Shirosugi
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2005-182772 20050623
- Main IPC: H04N5/50
- IPC: H04N5/50

Abstract:
In a digital broadcasting receiving apparatus, channel selection that switches a physical channel requires a longer period of time than analog. To solve the above problem, for example, there are provided two systems each including a digital tuner and a decoder, wherein channel selection and decoding are carried out by a second tuner and decoder respectively, when the user carries out the channel selection operation. During this time, the first system continues decoding. At the moment when the user carries out the channel selection operation, the luminance is decreased to some extent to allow the user to intuitively know that the channel selection operation is started, and then the luminance is further decreased gradually. When the luminance reaches zero, the decoding is started in the second system, and then the system to display is switched.
Public/Granted literature
- US20060291441A1 Receiving apparatus and receiving method Public/Granted day:2006-12-28
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