Television receiver and external devices
First Claim
1. A television receiver to which plural external devices are respectively connected through IEEE1394 lines and analog lines, comprising:
- a command transmission means for successively transmitting the same transmission command to the plural external devices through the IEEE1394 lines connected to the respective external devices; and
a switching control means for monitoring DC levels at analog video signal input terminals or analog audio signal input terminals which are connected to the respective analog lines to discriminate analog lines which are used for transmission of response commands that are outputted from the respective external devices in response to the respective transmission commands, and automatically selecting either the IEEE1394 lines or the analog lines which are used by the respective external devices, according to the operations of the respective external devices.
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Accused Products
Abstract
A television receiver according to the present invention successively transmits the same transmission command to external devices (1a)˜(3b) connected through IEEE (1394) lines and HDMI lines, and monitors the DC levels of HDMI terminals to which the respective HDMI lines are connected, thereby to discriminate the HDMI lines used for transmission of response commands that are outputted from the respective BD recorders (1b)˜(3b) in response to the transmission commands, and then automatically performs switching between the IEEE (1394) lines and the HDMI lines which are used by the respective BD recorders (1b)˜(3b), according to the operations of the BD recorders (1b)˜(3b). Therefore, with respect to the plural external devices which are connected to the television receiver through the HDMI lines and the IEEE (1394) lines, it is possible to automatically recognize as to which external devices are connected to which HDMI lines, whereby bothersome settings as those required in the conventional device are dispensed with, leading to enhanced user operability.
65 Citations
19 Claims
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1. A television receiver to which plural external devices are respectively connected through IEEE1394 lines and analog lines, comprising:
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a command transmission means for successively transmitting the same transmission command to the plural external devices through the IEEE1394 lines connected to the respective external devices; and
a switching control means for monitoring DC levels at analog video signal input terminals or analog audio signal input terminals which are connected to the respective analog lines to discriminate analog lines which are used for transmission of response commands that are outputted from the respective external devices in response to the respective transmission commands, and automatically selecting either the IEEE1394 lines or the analog lines which are used by the respective external devices, according to the operations of the respective external devices. - View Dependent Claims (3)
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2. A television receiver to which plural external devices are respectively connected through IEEE1394 lines and analog lines, comprising:
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a command transmission means for transmitting plural transmission commands having different characteristics for the respective external devices, to the respective external devices through the IEEE1394 lines connected to the external devices; and
a switching control means for discriminating an analog line which is used for transmission of response commands that are outputted from the respective external devices in response to the respective transmission commands, and automatically selecting either the IEEE1394 lines or the analog lines which are used by the respective external devices, according to the operations of the respective external devices. - View Dependent Claims (4, 5, 6)
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7. A television receiver to which external devices are respectively connected through IEEE1394 lines and digital lines, comprising:
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a command transmission means for transmitting transmission commands to the external devices through the IEEE1394 lines; and
a switching control means for discriminating a digital line which is used for transmission of response commands that are outputted from the external devices in response to the transmission commands, and selecting either the IEEE1394 lines or the digital lines which are used by the external devices, according to the operations of the external devices.
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8. A television receiver to which plural external devices are respectively connected through IEEE1394 lines and digital lines, comprising:
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a command transmission means for successively transmitting the same transmission command to the plural external devices through the IEEE1394 lines connected to the respective external devices; and
a switching control means for discriminating a digital line which is used for transmission of response commands that are outputted from the respective external devices in response to the respective transmission commands, and selecting either the IEEE1394 lines or the digital lines which are used by the respective external devices, according to the operations of the respective external devices. - View Dependent Claims (10, 12, 13, 14)
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9. A television receiver to which plural external devices are respectively connected through IEEE1394 lines and digital lines, comprising:
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a command transmission means for transmitting plural transmission commands having different characteristics for the respective external devices, to the respective external devices through the IEEE1394 lines connected to the external devices; and
a switching control means for discriminating a digital line which is used for transmission of response commands that are outputted from the respective external devices in response to the respective transmission commands, and selecting either the IEEE1394 lines or the digital lines which are used by the respective external devices, according to the operations of the respective external devices. - View Dependent Claims (11, 17, 18, 19)
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15. An external device connected to a television receiver through IEEE1394 lines and analog lines, including:
a detection means for detecting transmission commands which are transmitted from the television receiver through the IEEE1394 lines, and outputting response commands corresponding to the transmission commands to the television receiver through the analog lines.
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16. An external device connected to a television receiver through IEEE1394 lines and digital lines, including:
a detection means for detecting transmission commands which are transmitted from the television receiver through the IEEE1394 lines, and outputting response commands corresponding to the transmission commands to the television receiver through the digital lines.
Specification