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4329652 |
Apparatus for synchronization control of a plurality of inverters
In controlled apparatus in which the output pulses of a common reference oscillator are the reference signals of a plurality of inverters, a synchronizing signal generated once in each cycle is...
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4327442 |
Clock recovery device
A clock recovery device for a digital data receiver. This device includes a first register for generating a clock signal having the same nominal frequency as the distant clock signal; a second...
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4327376 |
Dual phase-control loop horizontal deflection synchronizing circuit
A television horizontal deflection synchronizing system uses two phase-lock loops. A horizontal oscillator operating at a frequency greater than the horizontal frequency is counted and a bilevel...
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4321547 |
Electronic discrimination circuitry for the highest frequency of a plurality of input signals
In electronic discrimination circuitry each of a plurality of at least three analog input signals is converted to respective digital pulse output signals and to a number of multi-phase clocking...
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4320527 |
Bit synchronizing system for pulse signal transmission
A bit synchronizing system for generating a timing signal corresponding to a transmitted pulse signal is disclosed in which the transmitted pulse signal is converted into a signal in which the...
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4314164 |
Computer channel access circuit for multiple input-output devices
An access circuit for use in a computer input-output channel. Retriggerable mono-stable multivibrators are used to provide access timing periods during which an input-output device can access a...
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4313206 |
Clock derivation circuit for double frequency encoded serial digital data
A circuit arrangement for extracting clocking signals from double frequency encoded transition-event waveforms. The incoming waveform is fed directly into a digital delay line which generates three...
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4300059 |
Sequential logical electronic circuit controlling the discharge of controllable semiconductors
The present disclosure refers to a sequential logical electronic circuit for operating the discharge gates of a plurality of controllable semiconductors with the object of regulating outputs of...
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4262219 |
Circuit for generating phases to control the carrying out of operations in a data processing system
A control signal generating circuit is provided which is capable of activating its output in one of two modes depending on whether a transition occurs between the levels of one of the two voltages...
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4257108 |
Pulse generator
A pulse generator for generating pulse groups with desired widths and relations (spacings) within and between the groups up to extremely high speeds and with a time accuracy of the order of...
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4245215 |
Power line signalling system
A system for transmitting data from a transmitter to a receiver via an alternating current power line connecting the transmitter and receiver. The transmitter suppresses half cycles of the power...
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4242754 |
Clock recovery system for data receiver
The invention relates to a clock recovery system for a data receiver. The system includes a ring counter connected to a flip-flop and a circuit for triggering the ring counter controlled by the...
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4241418 |
Clock system having a dynamically selectable clock period
A clock system for providing rectangular wave forms or wave trains, with each wave train having a selectable predetermined clock cycle period. A rectangular wave train is generated by a generator...
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4241311 |
Digital majority noise filter for bi-level data reception
Apparatus for filtering high frequency noise pulses from alternating analog data of a frequency F, which includes means to convert the analog signal to a square wave bi-level signal, sampling the...
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4241309 |
Synchronizing method and apparatus
A method and apparatus are described for developing a series of synchronizing pulses related to a series of input pulses of variable amplitude above a background noise level. A first signal is...
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4238692 |
Method and device for producing start pulses in periodic motion process
The production of start pulses a periodic motion process involves simultaneous generation of a basic train of pulses of a periodic motion phase, at the moment the phase is reached, and a main time...
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4223269 |
Device for inserting several bits in a rhythmed digital train
Device for inserting several bits in a rhythmed digital train, comprising a osed looped shift register, the shift being controlled according to the rhythm of the train. The register receives, in...
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4213006 |
Circuit arrangement for the coarse synchronization of carrier signals and pulse signals with data signals in a data receiver
A circuit arrangement for the coarse synchronization of carrier signals and pulse signals with data signals in a data receiver is disclosed in which data signals modulated by a data transmitter are...
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4210776 |
Linear digital phase lock loop
A linear digital phase locked-loop generates a recovered clock which is synchronized with level transitions in the data signal being tracted. Internally generated clock pulses are cyclically...
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4204141 |
Adjustable DC pulse circuit for variation over a predetermined range using two timer networks
A circuit for providing a dc pulse, such as to a gated semiconductor for at least partial bypass of a ballast element connected to an HID lamp, the pulse being developed within a time range of an...
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4164666 |
Electronic apparatus using complementary MOS transistor dynamic clocked logic circuits
An electronic apparatus comprises a timer circuit driven for a given time in response to a key input, complementary MOS transistor clocked dynamic logic circuits each with an output storage...
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4159527 |
Wave generator
A periodic function wave generator is provided in a digital phase synchronizing circuit which comprises a memory circuit for storing the values of n phases obtained by equally dividing one period...
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4134302 |
Pulser for ultrasonic inspection system
A pulser circuit for providing electrical exciting pulses to a transducer in an ultrasonic testing apparatus in which a transducer transmits ultrasonic energy corresponding to the pulses into a...
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4128201 |
Synchronizing means
Synchronizing means is provided for synchronizing with a periodically repeating reference signal the change of level of an input signal which is capable of assuming either one of a first and second...
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4122675 |
Solar heat supplemented convection air stack with turbine blades
A high rise building is provided including upstanding peripheral wall portions and at least one of the peripheral wall portions includes an upstanding air flow passage extending therealong....
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4103335 |
Line synchronized interrupt generator
An interrupt generator comprising an optical coupler and a number of cascaded bidirectional one shots. The input of the optical coupler is coupled to AC powerlines which provide power to a...
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4101761 |
Timing pulse generator
A timing pulse generator for testing electronic components such as semiconductor memories, which tests require time accuracy and repeatability. A number of registers are provided for registering...
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4085375 |
Combined angular displacement measuring system and multiplier
A combined angular displacement measuring and multiplier system is provided which finds particular application in heading reference units for navigational purposes, but which has general utility,...
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4074514 |
Isochronous period generator having means for adjusting the isochronous period
An electronic watch including a reference isochronous period generator which can be reset or readjusted from outside the watch by a signal representing a standard time period. The generator...
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4059842 |
Method and apparatus for synchronizing a digital divider chain with a low frequency pulse train
A method and apparatus for synchronization of a digital divider chain with a low frequency reference pulse train is embodied in the form of all digital circuit apparatus suitable for fabrication by...
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4054950 |
Apparatus for detecting a preamble in a bi-phase data recovery system
In order to detect the eminent reception of a valid bit serial message, a preamble constituting a string of predetermined number of clock pulses only is employed. Prior to detection of the...
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4035841 |
Television picture centering control
A control circuit is provided for centering a display on a cathode ray tube by manual adjustment. A reference signal is received corresponding to a fixed point on the display. A shift circuit...
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4034348 |
Apparatus, including delay means, for sampling and recovering data recorded by the double transition recording technique
Data and clock bits are sampled by use of two delay means such as shift registers which are enabled at a clock rate which is set so that a first such delay means coupled to receive the bits...
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4027178 |
Circuit for generating synchronization signals
A circuit for generating synchronization signals from a digital data pulse train having a bit period T and conveying pulses in non-return-to-zero form. The circuit comprising (i) a rectifier device...
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4023103 |
Synchronizer for frequency hopping receiver
A receiver of a fast frequency hopping (FFH) system is synchronized with a ending transmitter in three phases from a starting condition where the frequency hopping local signal leads the received...
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4017803 |
Data recovery system resistant to frequency deviations
The data stream input to the recovery logic is taken from a point at which its transitions are timecoincident with those of the data stream input to the phase comparator of the phase locked...
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4011517 |
Timer apparatus for incrementing timing code at variable clock rates
A timer circuit receives a multi-bit digital signal representative of a timing code to be incremented. In dependence upon the coded value of the received signal, the code represented by the signal...
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4011465 |
MOSFET detecting and synchronizing circuit for asynchronous digital data
An asynchronous data input signal is detected and synchronized by a fast-acting circuit. The input is used to modulate a local clock and a detecting latch is then driven by the data-modulated...
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4004082 |
Method and system for multiplexing signal for transmission
A signal multiplexing method and system for transmitting a television signal by a narrow-band transmission medium incapable of transmitting d.c. components. In this method, a two-polarity pulse...
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4004275 |
Self-clocking data entry unit system
A self-clocking data entry unit system including a plurality of data entry units connected in seris in a loop which is connected at its ends to a controller. Data bits are provided by the...
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4002991 |
Pilot signal extracting circuitry
A pilot signal extracting circuitry designed to extract, from a composite signal consisting of plural signals modulated by a suppressed carrier modulation system, a pilot signal for controlling the...
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3996523 |
Data word start detector
In the disclosed detector, data is passed into two channels. In one channel successive interword pulses are gated out and the resulting pulses stretched at least one-half pulse width. In the second...
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3996481 |
FET load gate compensator
An FET load gate compensator employing feedback to control the load gate voltage holds the circuit delay and power dissipation of an integrated circuit nearly constant. The integrated circuit chip...
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3992638 |
Synchronous switch
A synchronous switch for alternating circuits or rectified alternating circuits, the operation of which is automatically synchronized on the passage to zero of the load voltage at its terminals....
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3988716 |
Computer interface system
An interface logic circuit permitting the transfer of information between two computers having asynchronous clocks is disclosed. The information transfer involves utilization of control signals...
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3986126 |
Serial pulse-code-modulated retiming system
An improved clock retiming system for pulse coded data is provided in which the clock signals are extracted from the encoded data and first and second signals of the same amplitude and frequency...
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3980820 |
Clock phasing circuit
A clock phasing circuit for aligning data which is transmitted by a first clock, running at a particular frequency, with a second clock running at the same frequency as the first clock but in a...
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3970995 |
Slaving calculator chips
An electronic calculator or data processing system implemented on semi-conductor chips to operate several chips in synchronism where at least one element common to the operation of all chips is...
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3962541 |
Frequency sample-and-hold circuit
A method and apparatus are described for reproducing the frequency of an incoming reference signal that persists for only a limited period of time. This is accomplished by counting, during the...
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3959731 |
Method of providing long time intervals between outputs of a timing means
Starting at the same time, two timing means produce a series of output pulses at slightly different frequencies. When the two output pulses coincide, a single output pulse is produced. This will...
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