Object finder
First Claim
1. An object finder system, comprisinga transmitter module having radio frequency means for selectively generating radio frequency energy, a transmitting antenna connected to said radio frequency means for radiating the radio frequency energy, modulator means connected to said radio frequency generating means for modulating the radiated electrical energy, a digital system for selectively producing at least one train of digital pulses for operating said modulator means, digital controlling means for selectively producing at least two different trains of digital pulses, switching means including a plurality of selectively operable electrical switches for selectively energizing said modulator means while also selectively operating said digital controller means, for selecting one of said trains of pulses, a plurality of receiver modules having means for selectively attaching each module to an object which may need to be located, each of said receiver modules having a radio frequency receiving antenna, radio frequency receiver means connected to said receiving antenna, demodulator means connected to said radio frequency receiving means for selectively producing a received train of pulses corresponding to one of the transmitted trains of pulses, and audio frequency means for producing an audible signal to enable a person to locate the receiver module.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus relates to systems and devices for enabling persons to locate lost or misplaced objects and items in households, offices, and other work places. Such devices and items may include remote-control devices for television sets, VCR'"'"'s, calculators, and miniature dictating machines. The apparatus comprises a wireless transmitter for producing a unique digital signal or data packet for a codable wireless receiver coded to respond only to the specific transmitter to cause the coded receiver to emit an audio signal or sound from a sound generating device for locating a misplaced object.
162 Citations
20 Claims
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1. An object finder system, comprising
a transmitter module having radio frequency means for selectively generating radio frequency energy, a transmitting antenna connected to said radio frequency means for radiating the radio frequency energy, modulator means connected to said radio frequency generating means for modulating the radiated electrical energy, a digital system for selectively producing at least one train of digital pulses for operating said modulator means, digital controlling means for selectively producing at least two different trains of digital pulses, switching means including a plurality of selectively operable electrical switches for selectively energizing said modulator means while also selectively operating said digital controller means, for selecting one of said trains of pulses, a plurality of receiver modules having means for selectively attaching each module to an object which may need to be located, each of said receiver modules having a radio frequency receiving antenna, radio frequency receiver means connected to said receiving antenna, demodulator means connected to said radio frequency receiving means for selectively producing a received train of pulses corresponding to one of the transmitted trains of pulses, and audio frequency means for producing an audible signal to enable a person to locate the receiver module.
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6. An object finder for locating misplaced or lost objects comprising:
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a wireless transmitter and a plurality of wireless receivers attachable to objects, said transmitter including means for transmitting at least three unique digital data packets each including a header, a receiver address, and a transmitter ID, said transmitter having a plurality of switches actuable to send a unique data packet for each receiver, each said receiver codable to respond to a unique digital data packet transmitted by the transmitter and having signal means to indicate its location, and each receiver having means for connection to or attachment to an object. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification