Inventory management system
First Claim
1. An inventory management control system comprising,transponder means for selectively generating and receiving an RF signal,processor means connected for controlling the operation of said transponder means,energy manager means including multivibrator means and voltage regulator means,said energy manager means connected for controlling the operation of said transponder means and said processor means so as to establish a duty cycle which requires a minimized utilization of energy thereby,transceiver means,antenna means connected to said transceiver means,analog-to-digital converter means connected to said transceiver means to measure the strength of the signal received at said antenna means, andcomputer means connected to said converter means to operate on the signal received at said antenna means.
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Accused Products
Abstract
An inventory management system which includes a transponder, an interrogation transceiver and control devices utilized therewith. The control devices operate to minimize the power consumption of the transponder while permitting selected, coded operation of the inventory management system. The interrogation transceiver provides linkage to the transponder by means of a modulated radio frequency (RF) carrier during system operation. A transmit/receive switch is also included in the invention to prevent harmful coupling between the transponder receiver and the transponder transmitter. This could occur during data exchanges between the transponder and the interrogation receiver.
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Citations
12 Claims
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1. An inventory management control system comprising,
transponder means for selectively generating and receiving an RF signal, processor means connected for controlling the operation of said transponder means, energy manager means including multivibrator means and voltage regulator means, said energy manager means connected for controlling the operation of said transponder means and said processor means so as to establish a duty cycle which requires a minimized utilization of energy thereby, transceiver means, antenna means connected to said transceiver means, analog-to-digital converter means connected to said transceiver means to measure the strength of the signal received at said antenna means, and computer means connected to said converter means to operate on the signal received at said antenna means.
Specification