Patents
Sitemap › G06 - Computing; Calculating; Counting › G06F - Electric digital data processing › G06F 1 - Details not covered by groups and
Patents for G06F 1 - Details not covered by groups and (173,766)
04/1991
04/02/1991US5005174 Dual zone, fault tolerant computer system with error checking in I/O writes
04/02/1991US5004867 Personal computer expansion slot seal and method
04/02/1991US5004866 Self-contained grounding strip
04/02/1991US5004320 Anti-reflection device for a VDT
04/02/1991CA1282394C Adapter support
03/1991
03/27/1991EP0419177A2 Personal computer
03/27/1991EP0419145A1 Input device
03/27/1991EP0418964A1 Record carrier, method of and information recording device for obtaining such record carriers, and information recording device comprising anti-copy means to inhibit unauthorized copying
03/27/1991EP0418906A2 Card type integrated circuit applicable to systems with different bits
03/27/1991EP0418448A1 A system for the protection against mains supply failure for computers by storing the processed information held in the volatile memory
03/26/1991US5003578 Power-saving device for a cable-information receiving/transmitting apparatus
03/26/1991US5003537 Method of transmitting data at full bandwidth within a synchronous system when clock skew plus delay exceeds the cycle time
03/26/1991US5003453 Apparatus for a balanced three phase AC power supply in a computer having variable DC loads
03/26/1991US5003410 System for recording/reproducing an information source having an apparatus specific identification signal
03/26/1991US5002184 Soft case protection for a hand held computer
03/26/1991CA1282177C Work saving system for preventing loss in a computer due to power interruption
03/20/1991EP0418149A2 Microcomputer controlled synthesizer-type radio receiver
03/20/1991EP0418000A2 Electronic equipment assembly
03/20/1991EP0417878A2 Interface control system
03/20/1991EP0417817A2 System and method for reducing the bandwidth of timing channels in a digital data processing system
03/20/1991EP0417265A1 Portable information processing device with adjustable screen.
03/20/1991EP0253885A4 Solid state key for controlling access to computer systems and to computer software and/or for secure communications
03/20/1991CN1050100A Computer with provision for continued operation during battery change
03/19/1991US5001753 Crytographic system and process and its application
03/19/1991US5001752 Public/key date-time notary facility
03/19/1991US5001731 Method and apparatus for eliminating clockskew race condition errors
03/19/1991US5001659 Structure for connecting a rotatable body to a stationary body
03/16/1991CA2025518A1 System and method for reducing timing channels in digital data processing system
03/13/1991EP0416922A2 Rotatable display unit
03/13/1991EP0416770A2 Cable organizer
03/13/1991EP0416732A2 Targeted resets in a data processor
03/13/1991EP0416589A2 Computer having a function of detecting a low-battery state
03/13/1991EP0416423A2 An arrangement for the attenuation of radiofrequency interferences caused by the harmonics of the clock frequency of digital devices
03/13/1991EP0416257A2 Personal computer allowing selective use of integral and external keyboards by means of selector
03/13/1991EP0415971A1 Constant-voltage supply system with a plurality of constant-voltage sources
03/12/1991US4999838 Failure recovery informing arrangement with simplified hardware in a data processing system
03/12/1991US4999806 Software distribution system
03/12/1991US4999794 Electronic device for reducing the power consumption during the supply of back up power
03/12/1991US4999526 To a pulse
03/12/1991CA1281418C Billing system for computer software
03/09/1991CA2024552A1 Power management for a laptop computer
03/07/1991WO1991003012A1 Compact input/output apparatus
03/07/1991DE3935042C1 Flat screen VDU for data processor - has support consisting of stand and linkage for pivotable retention
03/06/1991EP0415376A2 Computer unit with a resume function
03/06/1991EP0415323A2 Ultrasonic diagnosing apparatus
03/06/1991EP0415111A2 Back-up clock supply for digital systems
03/06/1991EP0415047A2 Precision timing circuit
03/05/1991US4998279 Method and apparatus for personal verification utilizing nonpredictable codes and biocharacteristics
03/05/1991US4998262 Generation of topology independent reference signals
03/05/1991US4998075 Programmable multiple oscillator circuit
03/05/1991US4998072 High resolution direct digital synthesizer
03/05/1991US4998055 DC input jack
03/05/1991US4997288 Power supply arrangement for fault-tolerant operation in a microcomputer-based encryption system
03/05/1991US4997103 Sliding door
03/05/1991CA1281088C Dynamic cmos current surge control
02/1991
02/28/1991DE3927236A1 Optional computer software copying method - transferring stored, selected software to removable medium without relinquishing control of copying method
02/27/1991EP0414566A2 Portable graphic computer apparatus
02/27/1991EP0414445A2 Direct digital frequency synthesizer
02/27/1991EP0414444A2 Phase accumulator with dithered incrementing of accumulation due to fine phase components
02/27/1991EP0413822A1 Data processing system using ic card
02/27/1991EP0233221B1 Apparatus and method for detecting time-related faults
02/26/1991WO1991003014A2 Method and apparatus for high precision weighted random pattern generation
02/26/1991US4996706 Method of controlling the electric power supplied to a modem
02/26/1991US4996562 Control device in image forming apparatus
02/26/1991US4996522 Folding electronic device
02/26/1991US4995579 Electronic
02/26/1991CA2023327A1 Phase accumulator with dithered incrementing of accumulation due to fine phase components
02/26/1991CA2023323A1 Direct digital frequency synthesizer
02/26/1991CA1280830C Process and a device for the protection of software
02/21/1991WO1991002303A1 Wake-up circuit arrangement for a microprocessor
02/20/1991EP0413350A2 Illegal copy prevention apparatus
02/20/1991EP0413287A2 One-chip semiconductor integrated circuit device having a digital signal processing circuit and an analog signal processing circuit
02/20/1991CN2071810U Substantial bus arrangement for single chip processor
02/19/1991US4994685 Regulated power supply and method
02/16/1991WO1991003123A1 Video filter
02/14/1991DE3926106A1 Data viewing device mounting for data processing system - has rotary plate mounted in pivot bearing on base plate movable w.r.t. supporting foot
02/13/1991EP0412826A1 Digital signal processing
02/13/1991EP0412328A2 Fault-tolerant clock for multicomputer complex
02/13/1991CN1049234A Hand held computer
02/12/1991US4992903 Structure of computer main frame
02/12/1991US4992743 Dual-tone direct digital synthesizer
02/07/1991WO1991001595A1 Multiple clock synthesizer
02/07/1991WO1991001523A2 Enhanced information overlay for use with a digitizing pad and computer
02/07/1991DE4022887A1 Current generation control circuit for time clock - switches to full normal condition on time card insertion
02/07/1991DE3925669A1 Generating orthogonal pulses in digital transmission systems - superimposes pulse basic function in specified system, forming first orthogonal pulse
02/06/1991EP0411764A2 Arbitrary waveform generator with adjustable spacing
02/06/1991EP0411759A2 Synchronizer using clock phase extrapolation
02/06/1991EP0411698A2 Portable computer provided with facsimile means
02/06/1991EP0411185A1 Data input device
02/06/1991EP0411119A1 Semiconductor module, its cooling system and computer using the cooling system
02/06/1991CN2070929U Socket case for nest interlock type computer
02/06/1991CN2070928U Universal virus prevention and cure card for microcomputer
02/05/1991US4991129 Dual mode actuator for disk drive useful with a portable computer
02/05/1991US4991058 Card housing attachment for a portable computer
02/05/1991US4990847 Microcomputer
02/02/1991CA2022210A1 Targeted resets in a data processor
01/1991
01/30/1991EP0410861A1 Architecture of a computer system comprising two buses
01/30/1991EP0410423A2 Multiple power supply system
01/30/1991EP0410212A2 Redundant clock generator arrangement
01/30/1991EP0409830A1 Microcomputer with reset signal distinguishing means
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