U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6260903

Portable automobile partition

A portable partition for use in an automobile having a seat with a seat bench and a seat backrest.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 331/52 - Semiconductor (e.g., transistor)


Subclass of Class 331 - Oscillators
Definition: Subject matter wherein the cascaded oscillators are of the
No. of patents: 11
Last issue date: 07/31/2007


NumberTitleIssue Date
7250314Display system and method of producing the same
Disclosed are a display system and a method of producing the same. In the present invention, a hexagonal pyramid shaped GaN semiconductor light-emitting device selectively crystal-grown is fixed on an upper surface of a substrate by embedding it in an insulation lay...
07/31/2007
7039885Methodology for design of oscillator delay stage and corresponding applications
Methods are described that involve characterizing an oscillator's jitter or phase noise over a plurality of the oscillator's effective number of delay stages. The oscillator comprises a series of delay stages. Each one of the effective number of delay stages, if sel...
05/02/2006
6188292Two interconnected oscillators having adjustable coupling for controlling frequency
A first and a second fixed-frequency oscillator coupled in a ring topology to generate a variable frequency output is provided. Frequency variation is achieved by varying the coupling between the two oscillators. The coupling may be varied by using a vari...
02/13/2001
5864258VCO composed of plural ring oscillators and phase lock loop incorporating the VCO
A voltage-controlled oscillator, with high noise rejection of the supply voltage, includes a plurality of delay cells in an odd number Nࣙ3, which are connected to form a first ring oscillator and powered by the difference between a supply voltage Vcc an...
01/26/1999
5561398LC-tuned voltage controlled ring oscillator
A differential delay stage for a ring oscillator utilizes a resonant circuit formed by an inductor and a capacitor consisting of two varactor diodes connected back-to-back. A common cathode connection is connected to a variable voltage source to vary the ...
10/01/1996
5418497Low voltage VCO having two oscillator circuits of different frequencies
BiCMOS technology is used in the design of a VCO (200) to improve low DC operation. The VCO (200) includes two coupled oscillator circuits (201,219) tuned to different fixed frequencies such that the oscillator resonant frequencies define the tuning range...
05/23/1995
4785262Pulse generator producing pulses having a width free from a power voltage and a threshold voltage of an inverter used therein
A pulse generator includes a capacitor having one end held at a reference potential and the other end, a first inverter having a threshold voltage and its input portion connected to the other end of the capacitor, a control circuit producing a signal for ...
11/15/1988
4706041Periodic negative resistance microwave structures and amplifier and oscillator embodiments thereof
Structures (30) with IMPATT type diodes (34) located periodically along a transmission line (38-32) to simulate a distributed diode are disclosed. Preferred embodiments include incorporation of the periodic diode structures as the gain element of microwav...
11/10/1987
4626799Warble signaling device
There are three oscillator circuits which oscillate at different frequencies, each oscillator circuit including a gate having an input and an output. The output of the first gate is connected to an inverter and the input of the second gate. The output of ...
12/02/1986
4040075Frequency converter
A frequency converter utilizing a novel four terminal semiconductor device having an emitter grounded current amplification characteristic which is V-shaped wherein the gate terminal of the four terminal device is biased to the low point of the emitter gr...
08/02/1977
4030014Current-to-current electrical isolator
A current-to-current isolator is utilized in a monitoring system between a signal transmitter and a control room instrument. The isolator has a master oscillator, including a first transformer, a slave oscillator, a current transformer and a rectifying ci...
06/14/1977
 
Sign InRegister
Username  
Password   
forgot password?