Automatic transmission power adjustment for Doppler radar
First Claim
1. Doppler radar heart sensor comprising:
- a radar signal emitter;
a radar signal receiver;
a signal pattern matcher connected to the radar signal receiver and arranged to analyze a received radar signal, to compare the received radar signal with signal patterns, and to issue a corresponding indication signal upon detection of a sufficiently high similarity between the received radar signal and at least one of the signal patterns;
a transmission power adjuster connected to the radar signal emitter and the signal pattern matcher, the transmission power adjuster being arranged to gradually modify a transmission power delivered to the radar signal emitter until the signal pattern matcher issues the indication signal.
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Accused Products
Abstract
The invention relates to a Doppler radar heart sensor comprising a radar signal emitter (102); a radar signal receiver (103); a signal pattern matcher (106); and a transmission power adjuster (108). The signal pattern matcher (106) is connected to the radar signal receiver (102) and arranged to analyze a received radar signal (105), to compare the received radar signal with signal patterns, and to issue a corresponding indication signal upon detection of a sufficiently high similarity between the received radar signal and at least one of the signal patterns. A transmission power adjuster (109) is connected to the radar signal emitter (102) and the signal pattern matcher (106), the transmission power adjuster being arranged to gradually modify a transmission power delivered to the radar signal emitter (102) until the signal pattern matcher issues the indication signal. The invention also relates to a corresponding method and a computer program product.
10 Citations
14 Claims
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1. Doppler radar heart sensor comprising:
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a radar signal emitter; a radar signal receiver; a signal pattern matcher connected to the radar signal receiver and arranged to analyze a received radar signal, to compare the received radar signal with signal patterns, and to issue a corresponding indication signal upon detection of a sufficiently high similarity between the received radar signal and at least one of the signal patterns; a transmission power adjuster connected to the radar signal emitter and the signal pattern matcher, the transmission power adjuster being arranged to gradually modify a transmission power delivered to the radar signal emitter until the signal pattern matcher issues the indication signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Method for adjusting a transmission power of a Doppler radar heart sensor, the method comprising:
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a) sending Doppler radar signals; b) receiving a received radar signal; c) analyzing the received radar signal; d) comparing the received radar signal with signal patterns; e) if said comparing reveals a sufficiently high similarity between the received radar signal and at least one of the signal patterns terminating the method for adjusting, or else adjusting the transmission power by gradually modifying the transmission power and repeating actions a) to e). - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification