CIRCUIT, TRANSMISSION SYSTEM AND METHOD FOR DETERMINING PROXIMITY OF AN OBJECT
First Claim
Patent Images
1. A circuit, comprising:
- a sensing circuit for a first antenna and a second antenna, wherein the sensing circuit comprises an adjustable characteristic that is based on a proximity of an object to the first or second antenna used to transmit a transmit signal; and
an evaluation circuit coupled to the sensing circuit, the evaluation circuit being configured to monitor the characteristic of the sensing circuit and to determine whether the characteristic fulfills a predetermined criterion.
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Abstract
A circuit includes a sensing circuit for a first antenna and a second antenna, the sensing circuit including an adjustable characteristic that is based on a proximity of an object to the first or second antenna used to transmit a transmit signal. An evaluation circuit is coupled to the sensing circuit. The evaluation circuit is configured to monitor the characteristic of the sensing circuit and to determine whether the characteristic fulfills a predetermined criterion.
21 Citations
20 Claims
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1. A circuit, comprising:
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a sensing circuit for a first antenna and a second antenna, wherein the sensing circuit comprises an adjustable characteristic that is based on a proximity of an object to the first or second antenna used to transmit a transmit signal; and an evaluation circuit coupled to the sensing circuit, the evaluation circuit being configured to monitor the characteristic of the sensing circuit and to determine whether the characteristic fulfills a predetermined criterion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for determining proximity of an object to a first antenna or to a second antenna usable to transmit a transmit signal, comprising:
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monitoring a characteristic of a sensing circuit, the sensing circuit comprising an adjustable characteristic that is based on a proximity of an object to the first or second antenna used to transmit a transmit signal; and indicating an object in the proximity of the first or second antenna if the characteristic fulfills a predetermined criterion. - View Dependent Claims (19, 20)
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Specification