Receiver apparatus, tuner, and circuit

摘要

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.

主权项

1. 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.