Wearable electric field detector
First Claim
1. A wearable electric field detector comprising:
- a housing adapted to be mounted on a user'"'"'s person, a sensing circuit disposed in the housing and responsive to an electric field for generating a sense signal which varies in proportion to the strength of the sensed field, an alarm circuit coupled to the sensing circuit for producing an indication of the sensed field;
said alarm circuit including an audio annunciator for producing an audible alarm signal in response to the sense signal; and
a normally disabled mute circuit coupled to the alarm circuit and enabled only when the alarm circuit is producing an indication of a sensed field, the mute circuit being selectively operable only when enabled for deactivating the audio annunciator without affecting the sensing circuit.
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Accused Products
Abstract
A wearable electric field detector has a housing mountable on a user'"'"'s person and including a sensing circuit responsive to an electric field to generate a signal which varies in proportion to the strength of the sensed field, and an alarm circuit coupled to the sensing circuit for producing an intermittent audible alarm signal, which has a repetition rate varying in proportion to the strength of the field, and a visible alarm signal. A mute circuit is manually activatable for selectively muting the audible alarm and then automatically reenabling it after a predetermined time period. The detector includes a manually-actuatable test circuit. There is no on-off switch, the detector being disabled by being disposed in a shielded carrying case.
93 Citations
15 Claims
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1. A wearable electric field detector comprising:
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a housing adapted to be mounted on a user'"'"'s person, a sensing circuit disposed in the housing and responsive to an electric field for generating a sense signal which varies in proportion to the strength of the sensed field, an alarm circuit coupled to the sensing circuit for producing an indication of the sensed field;
said alarm circuit including an audio annunciator for producing an audible alarm signal in response to the sense signal; and
a normally disabled mute circuit coupled to the alarm circuit and enabled only when the alarm circuit is producing an indication of a sensed field, the mute circuit being selectively operable only when enabled for deactivating the audio annunciator without affecting the sensing circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In combination:
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a wearable electric field detector, said detector including a housing adapted to be mounted on a user'"'"'s person, a sensing circuit disposed in the housing and responsive to an electric field for generating a sense signal which varies in proportion to the strength of the sensed field, and an alarm circuit coupled to the sensing circuit for producing an indication of the sensed field; and
a carrying case adapted to receive the housing and including shield material for shielding the sensing circuit from electric fields when the detector is disposed in the carrying case. - View Dependent Claims (12, 13, 14, 15)
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Specification