Class 327/120 - With plural outputs

Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter wherein multiple harmonic output waves are
No. of patents: 29
Last issue date: 05/20/2008

Number	Title	Issue Date
7375599	Analog circuit and method for multiplying clock frequency A signal generating circuit includes a relaxation oscillator operating to alternately generate a first ramp signal that is periodic at a frequency of the relaxation oscillator and a second ramp signal that is periodic at the frequency of the relaxation oscillator an...	05/20/2008
7340233	Integrated circuit and methods for third sub harmonic up conversion and down conversion of signals An integrated circuit may include a receiver and/or a transmitter that performs third order sub-harmonic conversion. The integrated circuit may include a Gilbert cell active mixer with three or more serially-connected transistors in each of the mixer's four branches...	03/04/2008
7302011	Quadrature frequency doubling system The frequency doubler of the present invention operates to provide an in-phase signal and a quadrature signal, each having a frequency equal to twice the frequency of a reference signal. The in-phase and quadrature signals are based on signals that are 0 degrees, 45...	11/27/2007
7271631	Clock multiplication circuit A clock multiplication circuit simple in configuration, easy to adjust the characteristics thereof, and capable of shortening lockup time. The circuit delivers an output clock signal at a frequency that is a multiple of the frequency of a reference clock signal as i...	09/18/2007
7262714	Interpolating encoder utilizing a frequency multiplier An encoder having a detector and an optical system that generates an image of a code strip on the detector is disclosed. The image includes a plurality of light and dark stripes, the detector generating a plurality of sinusoidal signals differing in phase from one a...	08/28/2007
7242913	Circuit arrangement for frequency conversion and mobile radio device with the circuit arrangement The invention is directed to a frequency conversion circuit arrangement a mobile radio containing such circuit which provide frequency conditioning with a frequency mixer. In this context, a feedback path from the output of the frequency mixer to a further input on ...	07/10/2007
7091757	Frequency generator and communication system The object of the invention is to provide a frequency generator which is composed of an oscillator and a frequency doubler and in which difference in amplitude between differential outputs of the frequency doubler can be equalized at low power consumption without ad...	08/15/2006
7061285	Clock doubler A clock doubler including clock doubling circuitry for generating from a system clock a clock signal having a frequency substantially double that of the system clock and also having a pulse width and associated duty cycle is provided. Timing circuitry for generating...	06/13/2006
6801066	Apparatus for generating quadrature phase signals and data recovery circuit using the same An apparatus for generating quadrature phase signals in a half-rate data recovery circuit, which is adapted to generate a first and a second clock signals having the same frequency and being 90 degrees out of phase with each other. The apparatus for generating quadr...	10/05/2004
6529052	Frequency multiplier based on exclusive-or gate and frequency divider An electronic device which includes a periodic signal generator (12) and a frequency multiplier circuit (14) for multiplying the frequency of the periodic signal. The multiplier circuit is formed on the basis of an EXCLUSIVE-OR gate (20), which receives t...	03/04/2003
6380774	Clock control circuit and clock control method A clock control circuit which includes a frequency multiplying interpolator for generating and outputting multiphase clocks by frequency multiplying an input clock; a switch for outputting two of the multiphase clocks input thereto from the frequency mult...	04/30/2002
6043700	Analog multiplier with thermally compensated gain A bipolar analog multiplier with a greatly reduced output sensitivity to temperature. The multiplier uses the difference between the multiplier input voltages and the reference voltages to generate currents. Voltages which are logarithmically dependent on...	03/28/2000
5973539	Mixer circuit for mixing two signals having mutually different frequencies A phase shifter is provided between common emitters of two differential transistor pairs of a mixer circuit. The phase shifter changes the phase of a voltage signal input to one common emitter by 180° and applies it to the other common emitter, and cause...	10/26/1999
5939925	Semiconductor circuitry to process analog signals using weighted- sum operations A semiconductor operational circuit conducts real-time analog vector operations to permit the determination of the center of gravity of an image of a moving object. The circuit employs a first processing stage utilizing CMOS source follower circuits to pe...	08/17/1999
5933035	Digital clock frequency multiplication circuit and method A clock frequency multiplier with a rise detector flip-flop connected to a series of buffers having interspersed parallel output taps connected to a binary to Gray converter for providing real time rise status indications. The parallel tap outputs are con...	08/03/1999
5883539	Differential circuit and multiplier A differential circuit is provided, which makes it possible to realize an ideal linear behavior with respect to an input signal. This circuit includes a voltage-current converter, a current-voltage converter, and a triple-tail cell. The voltage-current co...	03/16/1999
5864255	Four quadrant square law analog multiplier using floating gate MOS transitions A four quadrant multiplier using multiple input floating-gate MOS transistors is provided. It is based on the square law characteristics of the MOS transistor and can be realised with only four floating gate MOS transistors, two resistors and a current so...	01/26/1999
5813588	Magazine assembly for fastener driving tools A magazine assembly for fastener driving tools includes a longitudinal track element having a J-shaped section for supporting the fasteners which are fed one by one towards a driver track of the nose of the fastener driving tool. There is provided a longi...	09/29/1998
5729166	Digitally implemented frequency multiplication circuit having adjustable multiplication ratio and method of operation A frequency multiplication circuit (10) includes a periodic interval selector (12) and a delay element (28) to produce an output signal (26) in phase with, and at a frequency multiple of a reference signal (18). During a first time interval, the periodic ...	03/17/1998
5630228	Double balanced mixer circuit with active filter load for a portable comunication receiver A double balanced mixer circuit (50) having a multiplication circuit (10) and an active filter circuit (30) coupled to the multiplication circuit (10). The active filter circuit (30) has a common-base differential amplifier (32) coupled to the differentia...	05/13/1997
5422594	Multi-channel carrier wave generator A multi-channel carrier wave generator includes a signal source capable of generating a carrier wave having a frequency, a first input-match diode circuit receiving the carrier wave to correspondingly generate a plurality of harmonic waves, a first multi-...	06/06/1995
5389886	Quadrature signals frequency doubler A circuit for generating a pair of quadrature output signals from a pair of quadrature input signals in which the frequency of the output signals is double that of the input. The circuit consists of two dual phase shifters, two symmetrical multipliers and...	02/14/1995
4434696	Instrument for comparing equal temperament and just intonation Equal-ratio scales offer a choice of semitone accuracies ranging from a thousandth cent to a millionth of a cent, any note of which may be selected as a reference for a fully chromatic just-intonation scale whose ratios are absolute and may be modulated i...	03/06/1984
4359688	Frequency multiplying circuit for an optical encoder A frequency multiplying circuit for producing double frequency sine and cosine output signals sin 2x and cos 2x from sine and cosine input signals sin x and cos x, comprising two multiplier circuits, each having an output e0 and four inputs a	11/16/1982
4357496	Keypad logic interface circuit A keypad logic interface circuit (200) provides a switch closure output signal representative of a selected one of a plurality of digits on a crosspoint contact array keypad (100). The selected one of the plurality of digits provides the switch closure si...	11/02/1982
4355228	Image analyzer with light pen or the like and shading corrector A shading corrector is provided for an image analyzer. The shading corrector is capable of storing an image presented to a raster scanning television camera included in the overall system. A memory is used to store camera video voltage variations which ar...	10/19/1982
4224638	Frequency multiplier for use with CCD comb filter Frequency multiplier includes common-emitter input amplifying stage receiving fundamental frequency input signals at input transistor base. Output amplifying stage has output transistor with its base linked to input transistor collector, and with its coll...	09/23/1980
4056692	Digital tone generator A stable generator produces a reference square wave signal having a stable given frequency. Logic circuitry is coupled to the generator to provide a plurality of square wave signals each having a different predetermined frequency, each of the predetermine...	11/01/1977
4052673	Combined controlled oscillator and frequency multiplier A voltage controlled oscillator which, for example, may be utilized in a phase locked loop, includes an odd number (n) of cascaded COS-MOS inverter stages with a feedback path coupling the output of the last stage to the input of the first stage to form a...	10/04/1977

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Class 327/120 - With plural outputs