Duplexer and switch enhancement
First Claim
Patent Images
1. A signal selector enhancer, comprising:
- a signal selector configured to receive a signal at a first node, receive and transmit signals at a second node, and provide a received signal to a third node;
a filter configured to receive the signal from the first node and provide an output signal for receiver isolation and an output signal for transmission masking;
a receiver noise canceller configured to receive the output signal for receiver isolation and provide an adjusted filtered signal at the third node, the filter and the receiver noise canceller being coupled in parallel with the signal selector;
a transmission noise canceller configured to receive the output signal for transmission masking and provide a mask signal for noise cancellation at the second node; and
a first summation circuit configured to combine the adjusted filtered signal with the received signal provided to the third node such that an operation of the signal selector is enhanced.
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Accused Products
Abstract
A signal selector enhancer suitable for portable electronic devices and base stations is disclosed. In one embodiment, the enhancer can include: a filter for receiving a signal from a first node, and for providing a filtered signal output therefrom, where the first node is coupled to a signal selector; and a noise canceller for receiving the filtered signal output, and for providing an adjusted filtered signal at a second node, where the second node is coupled to the signal selector, and where an operation of the signal selector is enhanced by the filter and the noise canceller arrangement.
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Citations
20 Claims
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1. A signal selector enhancer, comprising:
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a signal selector configured to receive a signal at a first node, receive and transmit signals at a second node, and provide a received signal to a third node; a filter configured to receive the signal from the first node and provide an output signal for receiver isolation and an output signal for transmission masking; a receiver noise canceller configured to receive the output signal for receiver isolation and provide an adjusted filtered signal at the third node, the filter and the receiver noise canceller being coupled in parallel with the signal selector; a transmission noise canceller configured to receive the output signal for transmission masking and provide a mask signal for noise cancellation at the second node; and a first summation circuit configured to combine the adjusted filtered signal with the received signal provided to the third node such that an operation of the signal selector is enhanced. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of enhancing a signal selector operation, the method comprising:
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receiving, by a signal selector, a signal at a first node, receiving and transmitting signals at a second node, and providing a received signal to a third node; filtering, by a filter, the signal from the first node to provide an output signal for receiver isolation and an output signal for transmission masking; adjusting, by a receiver noise canceller, the output signal for receiver isolation to provide an adjusted filtered signal at the third node; noise cancelling, by a transmission noise canceller, the output signal for transmission masking to provide a mask signal for noise cancellation at the second node; and combining, by a first summation circuit, the adjusted filtered signal with the received signal provided to the third node such that an operation of the signal selector is enhanced. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A signal module, comprising:
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an antenna configured to receive and transmit electromagnetic signals at a signal selector, the signal selector configured to receive a signal at a first node, receive and transmit signals at a second node, and provide a received signal to a third node; a transmitter coupled to a transceiver, the transmitter being configured to provide a transmit signal at the first node; a receiver coupled to the transceiver, the receiver being configured to receive a signal at the third node; and a signal selector enhancer, comprising a filter configured to receive the transmit signal from the first node and provide an output signal for receiver isolation and an output signal for transmission masking; a receiver noise canceller configured to receive the output signal for receiver isolation and provide an adjusted filtered signal at the third node, the filter and the receiver noise canceller being coupled in parallel with the signal selector; a transmission noise canceller configured to receive the output signal for transmission masking and provide a mask signal for noise cancellation at the second node; and a first summation circuit configured to combine the adjusted filtered signal with received signal provided to the third node such that an operation of the signal selector is enhanced. - View Dependent Claims (18, 19, 20)
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Specification