Communication method
First Claim
1. A method for producing sound, comprising the steps of:
- providing a base unit having a signal output portion adapted to be positioned in use in contact with or in close proximity to the surface of a user'"'"'s body, and a reception unit for mounting adjacent the user'"'"'s ear(s),locating the signal output portion in contact with or in close proximity to the surface of the user'"'"'s body,applying a radio-frequency signal, modulated with an audio signal, to the signal output portion of the base unit,transmitting the radio-frequency signal from the signal output portion into the user'"'"'s body,locating the reception unit in contact with or in close proximity to the user'"'"'s head,receiving the radio-frequency signal from the base unit at the reception unit after transmission substantially solely through the user'"'"'s body,demodulating the received signal with the reception unit to extract the audio signal therefrom, andgenerating sound adjacent the user'"'"'s ear(s) from the audio signal.
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Accused Products
Abstract
Audio apparatus comprises a base unit including circuitry for generating electrical signals representing sounds and at least one earphone adapted to receive the electrical signals and to reproduce sounds represented by the signals, in which the apparatus is provided externally with a terminal arranged so that it can be positioned in use in contact with or in close proximity to the surface of the user'"'"'s body. The circuitry is arranged to supply to the terminal signals which are transmitted through the user'"'"'s body, the or each earphone is provided with a terminal arranged so that it can be positioned in use in contact with or in close proximity to the surface of the user'"'"'s body so as to receive signals transmitted from the terminal through the user'"'"'s body, and the or each earphone includes receiving circuitry arranged to receive the signals. The earphones may be embodied in a pair of spectacles, and may be adjustable between a first position behind the ear and a second position in or more adjacent the ear.
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Citations
27 Claims
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1. A method for producing sound, comprising the steps of:
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providing a base unit having a signal output portion adapted to be positioned in use in contact with or in close proximity to the surface of a user'"'"'s body, and a reception unit for mounting adjacent the user'"'"'s ear(s), locating the signal output portion in contact with or in close proximity to the surface of the user'"'"'s body, applying a radio-frequency signal, modulated with an audio signal, to the signal output portion of the base unit, transmitting the radio-frequency signal from the signal output portion into the user'"'"'s body, locating the reception unit in contact with or in close proximity to the user'"'"'s head, receiving the radio-frequency signal from the base unit at the reception unit after transmission substantially solely through the user'"'"'s body, demodulating the received signal with the reception unit to extract the audio signal therefrom, and generating sound adjacent the user'"'"'s ear(s) from the audio signal.
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2. An apparatus for producing sound, said apparatus comprising:
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a base unit including; a signal output portion adapted to be positioned in contact with or in close proximity to the surface of a user'"'"'s body; means for modulating a radio-frequency signal with an audio signal; and means for transmitting the radio-frequency signal substantially solely through the user'"'"'s body via the signal output portion to a reception unit; and the reception unit including; receiving means to be placed in contact with or in close proximity to the user'"'"'s head for receiving the radio-frequency signal transmitted through the user'"'"'s body, means connected to the receiving means for demodulating the received signal to extract the audio signal therefrom, and an electrical-to-audio transducer connected to the demodulating means for generating sound from the audio signal. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An apparatus for producing sound, said apparatus comprising:
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a base unit including; a signal output portion adapted to be positioned in contact with or in close proximity to the surface of a user'"'"'s body; means for applying a radio-frequency signal, modulated with an audio signal, to the signal output portion for transmission substantially solely through the user'"'"'s body to a reception unit via the signal output portion; and the reception unit comprising at least one earphone, said earphone including; a casing; a terminal fixed to the casing so that when the earphone is worn the terminal is in contact with or in close proximity to the user'"'"'s skin; receiving circuitry adapted to receive the radio-frequency signals from the base unit via the terminal; means connected to the receiving means for demodulating the received signal to extract the audio signal therefrom; a transducer connected to the demodulating means for generating sound from the audio signal; and a battery to power said earphone. - View Dependent Claims (24, 25, 26, 27)
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Specification