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US 9,432,610 B2Granted
Receiver apparatus, tuner, and circuit
AssigneeSony Corporation
InventorsTomoari Itagaki, Kenji Komori, Noboru Sasho
Life of this patent
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Abstract
Provided is a receiver apparatus, including: a first receiver configured to receive a first signal having a first frequency band; and a second receiver configured to receive a second signal having a second frequency band, the second frequency band being different from the first frequency band, in which a signal path for the first signal and a signal path for the second signal share at least one component in a signal path for extracting an intermediate-frequency signal from a received signal, the component being configured to extract a signal of a particular channel from the received signal as the intermediate-frequency signal.
Claims9
A receiver apparatus, comprising:
- a first receiver configured to receive a first signal having a first frequency band;
- and
- a second receiver configured to receive a second signal having a second frequency band, the second frequency band being different from the first frequency band,
- wherein a signal path for the first signal and a signal path for the second signal share a component in a signal path for extracting an intermediate-frequency signal from a received signal, the component being configured to extract a signal of a particular channel from the received signal as the intermediate-frequency signal, the component being configured to directly receive both the first signal from the first receiver and the second signal from the receiver,
- wherein the component is a filter configured to selectively transmit one of a signal having a frequency corresponding to the first frequency band of the intermediate-frequency signal and a signal having a frequency corresponding to the second frequency band of the intermediate-frequency signal, and
- wherein the filter includes:
- a first lowpass filter in which an I signal is input;
- a second lowpass filter in which a Q signal is input, and
- the filter functions as a complex filter configured, when receiving the first signal, to input the I signal passing through the first lowpass filter in the second lowpass filter, and to input the Q signal passing through the second lowpass filter in the first lowpass filter.
6 more elements
A tuner, comprising:
- a first receiver configured to receive a first signal having a first frequency band;
- and
- a second receiver configured to receive a second signal having a second frequency band, the second frequency band being different from the first frequency band,
- wherein a signal path for the first signal and a signal path for the second signal share a component in a signal path for extracting an intermediate-frequency signal from a received signal, the component being configured to extract a signal of a particular channel from the received signal as the intermediate-frequency signal, the component being configured to directly receive both the first signal from the first receiver and the second signal from the receiver,
- wherein the component is a filter configured to selectively transmit one of a signal having a frequency corresponding to the first frequency band of the intermediate-frequency signal and a signal having a frequency corresponding to the second frequency band of the intermediate-frequency signal, and
- wherein the filter includes:
- a first lowpass filter in which an I signal is input;
- and
- a second lowpass filter in which a Q signal is input, and
- the filter functions as a complex filter configured, when receiving the first signal, to input the I signal passing through the first lowpass filter in the second lowpass filter, and to input the Q signal passing through the second lowpass filter in the first lowpass filter.
7 more elements
A circuit, comprising:
- a first receiver configured to receive a first signal having a first frequency band;
- and
- a second receiver configured to receive a second signal having a second frequency band, the second frequency band being different from the first frequency band, wherein
- a signal path for the first signal and a signal path for the second signal share a component in a signal path for extracting an intermediate-frequency signal from a received signal, the component being configured to extract a signal of a particular channel from the received signal as the intermediate-frequency signal, the component being configured to directly receive both the first signal from the first receiver and the second signal from the receiver,
- wherein the component is a filter configured to selectively transmit one of a signal having a frequency corresponding to the first frequency band of the intermediate-frequency signal and a signal having a frequency corresponding to the second frequency band of the intermediate-frequency signal, and
- wherein the filter includes:
- a first lowpass filter in which an I signal is input;
- and
- a second lowpass filter in which a Q signal is input, and
- the filter functions as a complex filter configured, when receiving the first signal, to input the I signal passing through the first lowpass filter in the second lowpass filter, and to input the Q signal passing through the second lowpass filter in the first lowpass filter.
7 more elements
Dependencies are inferred from the claim text.