Signal interfacing techinques to simplify integrated circuit radio designs
First Claim
1. A method for connecting signals between a radio integrated circuit (IC) and a signal processing device comprising the step of multiplexing two or more signals on a connection pin between the radio IC and the signal processing device;
- wherein in a transmit mode, the step of multiplexing comprises multiplexing a transmit in-phase (I) signal and a transmit quadrature (Q) signal on a connection pin between the radio IC and the signal processing device, and;
wherein in a receive mode, the step of multiplexing comprises multiplexing a receive in-phase (I) signal and a receive quadrature (Q) signal on a connection pin between the radio IC and the signal processing device.
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Accused Products
Abstract
A signal interfacing technique for connecting signals between a signal processing device and a radio integrated circuit (IC) involving multiplexing two or more signals on a connection pin between the radio IC and a signal processing device. According to one technique, transmit and receive signals are multiplexed such that during a transmit mode a transmit signal is coupled on the connection pin from the signal processing device to the radio IC, and during a receive mode a receive signal is coupled from the radio IC on the connection pin to the signal processing device. According to another technique, in-phase (I) and quadrature (Q) signals are multiplexed on a connection pin during both transmit and receive modes.
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Citations
23 Claims
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1. A method for connecting signals between a radio integrated circuit (IC) and a signal processing device comprising the step of multiplexing two or more signals on a connection pin between the radio IC and the signal processing device;
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wherein in a transmit mode, the step of multiplexing comprises multiplexing a transmit in-phase (I) signal and a transmit quadrature (Q) signal on a connection pin between the radio IC and the signal processing device, and; wherein in a receive mode, the step of multiplexing comprises multiplexing a receive in-phase (I) signal and a receive quadrature (Q) signal on a connection pin between the radio IC and the signal processing device. - View Dependent Claims (2, 3, 4)
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5. A radio transceiver integrated circuit (IC) comprising:
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a. at least one transmitter and at least one receiver, each of which includes an in-phase (I) signal path and a quadrature (Q) signal path; b. a transmitter connection pin on which a transmit I signal and a transmit Q signal are multiplexed for connection to the respective I and Q signal paths of the transmitter; and c. a receiver connection pin on which a receive I signal and a receive Q signal are multiplexed from the respective I and Q signal paths of the receiver. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification