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

Icon_funbox Bizarre Patents

Patent No. 5277148

Wearable Pet Enclosure

An enclosure for small animals which is wearable on the front or back of an animate being.

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 345/212 - Regulating means


Subclass of Class 345 - Computer graphics processing and selective visual display systems
Definition: Subject matter wherein the controlling means limits the
No. of patents: 736
Last issue date: 05/29/2012


                    19  
NumberTitleIssue Date
4198629Numerical display using plural light sources and having a reduced and substantially constant current requirement
The present invention relates to a numerical display having a reduced dc current requirement per character display site. The invention is applicable to a variety of numerical displays including seven segment and 4×7 matrix displays using light emitting d...
04/15/1980
4158786Display device driving voltage providing circuit
A voltage dividing circuit provides an intermediate level potential or intermediate level potentials between the maximum and minimum level potentials necessary for dynamic- or scanning-driving a liquid crystal display device. The voltage dividing circuit ...
06/19/1979
4156254Power line synchronization of CRT raster scan
In a cathode ray tube (CRT) display system using a horizontal line raster scan, the vertical sync signals are derived from the power line alternating current while the vertical blanking signals to blank the vertical retraces between rasters are timed to o...
05/22/1979
4139278Liquid crystal display device
A liquid crystal display device has a power source, a voltage converter, a liquid crystal display cell and a control signal generator. The voltage supplied from the power source to the converter is converted into a voltage for operating the liquid crystal...
02/13/1979
4137523Digital display driving circuit
An improved digital display driving circuit for driving digital display cells forming a ditigal display is provided. The driving circuit includes an interfacing circuit that in response to being energized receives a first data signal for selectively energ...
01/30/1979
4132465Electrochrome element control device
An electrochrome element control device comprising a voltage source connected in parallel via a switch with a circuit composed of a series-connected electrochrome element and a capacitor for limiting the time the voltage is supplied to the electrochrome e...
01/02/1979
4119957Digital display for cooking time and power of electric cooking device
A digital display apparatus for indicating a cooking time and power of an electric cooking device by means of common digital indicators, wherein a first group of AND gates is connected between a first shift register for storing a cooking time data and dig...
10/10/1978
4097856Gas panel single ended drive systems
A system for addressing and controlling a gaseous discharge display or memory device is adapted for intercommunication between a processor or controller and a gaseous discharge display device. Signals of write amplitude are selectively applied to ionize i...
06/27/1978
4096411Gas discharge tube and means for maintaining an invisible gas discharge therein
A gas discharge display tube is supplied with a small DC current at a level to maintain an invisible gas discharge and with a pulse-shaped supply voltage having a controllable pulse duration whereby a stable discharge is obtained at a very low brilliance ...
06/20/1978
4048632Drive circuit for a display
A compact circuit for selectively controlling the operation of a plurality of metal oxide semiconductor field effect transistors (MOSFETs) which drive a readout display, such as that found in a hand-held calculator, or the like. The circuit includes an in...
09/13/1977
4011557Device in a time piece for feeding an electro-luminescent display
It is known that an electro-luminescent display increases its light emitting efficiency with the current through it. Such a display in a watch run from a small battery, is fed by short impulses of high-intensity current by means of discharges from two cap...
03/08/1977
4005403Information storage and frequency converter for liquid crystal display
A general-purpose LSI (large-scale integrated circuit) computation circuit provides segment signals of high frequency at respective ones of its output terminals for displaying the computation results. It is necessary to provide a pulse frequency and pulse...
01/25/1977
3981002Portable electronic display device
Portable, electronic, indicia display apparatus, for use as a portable scoreboard, clock, and the like for athletic contests, and a portable display for commercial exhibitions, such as trade exhibitions and conventions, comprising (a) a portable remote di...
09/14/1976
3955185Power supply for calculators
To avoid useless power consumption in electronic apparatus equipped with display units, for example, such as electronic desk-top calculators with light-emitting diodes, a pair of timer arrangements are provided between the display units and power source t...
05/04/1976
3953762Circuit for supplying a specified one of plural external electrodes of a gas discharge display panel with unidirectional firing voltage pulses and for supplying others with pulses of a reduced voltage
In a driving circuit for a gas discharge display panel having first and second electrodes externally disposed on opposite sides of gas discharge cells, use has been made of an arrangement for supplying pulses of a unidirectional firing voltage of the pane...
04/27/1976
                    19  
 
Sign InRegister
Username  
Password   
forgot password?