A signal correlator for correlating pulse pairs received over a data transmission line as alternating positive and negative pulses representing data "1's" and "O's." The reception of a logic "1" is affirmed by testing for a negative polarity pule pulse an initial positive polarity pulse received over the transmission line. Conversely, the reception of a logic "O" is affirmed by testing for a positive pulse following an initial negative pulse received over the transmission line. The first pulse o...

A signal generator uses a shift register connected in a feedback loop with selectively operable gates between signal storage elements of the shift register. Non-overlapping clock signals are used to operate the gates to shift digital bits within the shift register and to concurrently operate gates connected to outputs of the shift register to define non-overlapping signal generator output signals.

A signal processor enables the examination of the spectral content of an input signal within a selected analysis bandwidth f.sub.a about an adjustable reference frequency f.sub.r. A multi-segment digital filter in the processor provides sharply reduced levels outside the selected analysis bandwidth by first multiplying the effective data rate in a multiple-register integrating filter and then restoring the data rate in subsequent digital filters.

A processor for converting signals generated by a shaft encoder into two separate pulse trains. The state of the output of the encoder is loaded into a register, whose output is used as an address to a memory device. Control information is stored in the memory device in accordance with a predetermined relationship between given addresses and output signals to be generated from the memory device. Respective output signals are generated upon the memory device being accessed by a given address. In ...

There is provided a signal generator suitable for use in a light signal transmitter for television receiver remote control means and the like. It has an oscillating circuit supplying an oscillation output across the base and emitter of a transistor through a resistor, the resistance of the resistor being appropriately preset, whereby a steady and stable amplitude of the output signal of the generator may be maintained irrespective of variations of the power supply voltage.

An endless belt incorporating a pair of conductor wires mounts on a pair of spaced pulleys for travel thereabout, in either direction, in response to a motor driving of one of the pulleys. The belt mounts lamps at spaced points therealong which are in current receiving engagement with the conductor wires which in turn receive current from an appropriate source through brush engaged conductor means on the pulleys.

A circuit for converting a diphase signal into an isochronous baseband data signal, operates by extracting a clock signal from the carrier signal and combining the diphase signal and clock signal in a modulo-2 adder. The clock signal has a frequency equal to the reciprocal of the duration of one element of the baseband data and is derived by isolating a second harmonic of the carrier signal and applying it to a frequency halving circuit. The relative phase of the clock signal and the isochronous...

This invention relates to a mechanically actuated pneumatic valve used to measure the start of rotation of a re-torquing motor and which will measure or detect motion regardless of the starting point by means of a loss motion device. The normally closed valve will give a full line pressure pneumatic signal.

A signal processor system and method is disclosed for use in an industrial process control environment in relation to scanning of low level analog signals, for averaging such signals that fall within a desired tolerance and for rejecting from the averaging operation any individual signal which fails to fall within the predetermined tolerance of the established average of the scanned input signals.

A signal light, which optionally may be combined with an ashtray base, having a quick-flip switch and a light conducting rod at the top so that when a patron of a restaurant or bar wishes immediate service the switch actuator is flipped and the light comes on to signal the desirability for service. The device comprises a tubular housing in which housing there is a spring for supporting batteries and the housing is mounted on a large circular base which may serve as an ashtray. The switch compris...