Rca Inc.

Randy D Rhodes

William J Hannan

George P Hope

Edwin Maxwell Fulcher

Robert George Saenz

A lid is secured to a housing by a lid latching handle assembly. The handle assembly includes a pair of resilient pads which are compressed against the lid when latched. A pair of locking screws with chamfered shoulders are threaded to the housing and engage a corresponding pair of chamfered holes in the handle to wedge and lock the handle in place as the screws are tightened.

Lid latching apparatus

A digital phase detector responsive to input signal transitions of first and second input signals for producing output current pulses of first and second polarities dependent upon whether the first input signal leads or lags the second; the width of the output pulses being proportional to the amount of phase lead or lag. The phase detector includes two edge triggered bistable circuits for controlling a tri-state current source which provides positive, negative, or zero current depending upon the respective logical states of the bistable circuits. The detector circuit is arranged so that the bistable circuits are placed in the SET state by signal applied to their respective input terminals, provided both bistable circuits are in the RESET state. Each bistable circuit is RESET by pulses supplied from a respective pulse forming circuit. The pulse forming circuit is conditioned by the bistable circuit it drives to be selectively responsive to the input signal being applied to the other bistable circuit. Only one of the bistable circuits is in the SET state at one time for the two input signals being out of phase. Both bistable circuits simultaneously alternate between SET and RESET states when the input signals are in phase.

Digital phase detector

An article such as a plastic credit card contains concealed identifying information. The information is in the form of a series of binary information bits and it is stored in an electronic serial memory. The memory is on an integrated circuit chip imbedded in the credit card with electrical connections to two terminals on opposite surfaces of the card. The stored information bits are read out from the credit card by an apparatus which supplies current to the terminals to energize readout from the serial memory. The information bits read out are in the form of sequential variations in the current flowing to the credit card which are detected and accumulated in a shift register for utilization by a display device or a computer.

Growing community of inventors

Frenchtown, NJ, United States of America

Randy D Rhodes