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| Number | Title | Issue Date |
| 7066875 | Apparatus and method for vein removal A device and method for removing a generally cylindrical tissue structure such as a blood vessel from the body of a human or animal. The device includes a body portion having distal and proximal ends with at least one lumen extending longitudinally through the body ... | 06/27/2006 |
| 5740461 | Data processing with multiple instruction sets A data processing system is described utilising two instruction sets. Both instruction sets control processing using full N-bit data pathways within a processor core 2. One instruction set is a 32-bit instruction set and the other is a 16-bit instruction ... | 04/14/1998 |
| 5737583 | Digital circuit simulation A primary circuit model using a primary simulator 40' operates in conjunction with a plurality of secondary circuit models 10, 20, 30 using a secondary simulator 100. Only signals external to the secondary circuit models are passed between the primary sim... | 04/07/1998 |
| 5708749 | Lighting apparatus and method Lighting apparatus and method includes a body of optically transparent material including selected interior and exterior surface portions that are polished or otherwise smoothed to promote internal reflections of light flux and to inhibit lateral emission... | 01/13/1998 |
| 5698784 | Vibratory rate gyroscope and methods of assembly and operation A vibrating gyroscope employs an electromagnetic transducer assembly which excites the vibration of the inertial element and senses its trajectory to provide an indication of movement relative to the plane of vibration of the inertial element. The transdu... | 12/16/1997 |
| 5695514 | Method and apparatus for harvesting blood vessels Apparatus and method of harvesting a vessel of interest use a thin-walled, dark-colored sheath inserted within the vessel with the aid of an inner, slidable support member that is removed following placement of the sheath within the length of the vessel o... | 12/09/1997 |
| 5680599 | Program counter save on reset system and method A data processing apparatus and method are described in which a reset function for recovering from a system crash is provided. Upon activation of a reset signal (nRESET), the contents of a program counter (R15pc) are saved within another register (R14svc)... | 10/21/1997 |
| 5675615 | Apparatus and method for switching asynchronous clock signals Within a data processing system having two alternative clock signals of different frequencies (fclk, mclk) it is necessary to provide a mechanism for switching between the clock signals. When switching from the fast clock (fclk) to the slow clock (mclk), ... | 10/07/1997 |
| 5642487 | Integrated circuit and method of operation An integrated circuit includes a plurality of data handling devices and a data buffer for enabling transfer of data between the internal data handling devices and one or more external data handling devices external to the integrated circuit. A controller ... | 06/24/1997 |
| 5642479 | Trace analysis of data processing A data processing system is described in which trace signals are provided upon a trace bus 12 to track the address of an instruction code currently being executed and the latest address to which a data access was made. The system incorporates a central pr... | 06/24/1997 |
| 5636227 | Integrated circuit test mechansim and method An integrated circuit test mechanism based upon the JTAG standard utilises serial scan chains for applying signals to and capturing signals from predetermined nodes within an integrated circuit (2). Multiple independent scan chains (12, 14, 16) are provid... | 06/03/1997 |
| 5635879 | Voltage controlled oscillator formed of two differential transconductors A monolithic CMOS phase-lock loop (PLL) circuit provides a high frequency of operation suitable for RF applications. The PLL produces an output clock with high spectral purity and very low jitter. The output clock has a low static phase error relative to ... | 06/03/1997 |
| 5627988 | Data memories and method for storing multiple categories of data in latches dedicated to particular category A data memory having an addressable array of memory cells which can be accessed as predetermined groups of memory cells, comprises output buffer means for storing the contents of at least the most recently read group of memory cells and another previously... | 05/06/1997 |
| 5623646 | Controlling processing clock signals A data processing system is provided in which the central processing unit clock signal (mclk, fclk) to a central processing unit core (14) may be suspended to reduce power consumption. This suspension is controlled by a suspend controller (20) that respon... | 04/22/1997 |
| 5613947 | Everting cannula apparatus and method A double-lumen balloon cannula and method for performing blunt dissection of an elongated, non-spherical cavity under visual control includes a tubular lumen to slidably support an endoscope therewithin, and a second lumen having an inverted, nonelastomer... | 03/25/1997 |
| 5615161 | Clocked sense amplifier with positive source feedback A differential sense amplifier includes positive feedback cross coupling to control operation in one mode as a differential sense amplifier and in another mode as a latch to control a data-latching load. Circuit nodes are precharged and equalized in respo... | 03/25/1997 |
| 5615132 | Method and apparatus for determining position and orientation of a moveable object using accelerometers A three-dimensional position and orientation tracking system uses accelerometers to measure acceleration of a moveable object (e.g., a head-mounted display unit or a data glove). A tracking processor generates both position and orientation information on ... | 03/25/1997 |
| 5614866 | Ultra high gain amplifier An amplifier includes an output buffer having an input coupled to a gain node which is the common node of the outputs of first and second current mirrors for receiving a signal current and having an output for providing an amplified drive current. The out... | 03/25/1997 |
| 5611799 | Ocular repair method Apparatus and method for surgical repair of a detached retina includes an array of insulated electrodes that can be positioned adjacent the rear of an eye near the detachment site for selective excitation of pairs of the electrodes to selectively develop ... | 03/18/1997 |
| 5610927 | Integrated circuit control An integrated circuit is described having a scan chain of the JTAG type in which there are provided a plurality of serially connected test cells 2. The test cells serve the additional function of operating during the normal operation of the integrated cir... | 03/11/1997 |
| 5602787 | Data memory with sense amplifier and method of operation A data memory includes a plurality of memory cells that are selectively operable during a memory read operation to generate a data signal indicative of data stored in that memory cell, and one or more sense amplifiers are connected to receive data signals... | 02/11/1997 |
| 5594169 | Optically sensed wire gyroscope apparatus and system, and methods for manufacture and cursor control Single and dual wire gyroscopes determine the orientation and attitude of a device using optical sensing of radiation interrupted by current-carrying, vibrating tensioned wires within a magnetic fields. The tensioned wires vibrate between end nodes within... | 01/14/1997 |
| 5591183 | Dissection apparatus The present invention provides a multiple cannula assembly which includes an inner cannula having a first balloon for making an elongated cavity by progressive dissection, an endoscope for visually monitoring the dissection, and an outer cannula having a ... | 01/07/1997 |
| 5585643 | Method and apparatus for directing electron radiation to subcutaneous cells The present invention provides a device for delivering an electron beam providing radiation treatment to subcutaneous cells. The device includes a hollow needle having a proximal and a distal end for respectively directing the electron beam therethrough. ... | 12/17/1996 |
| 5583804 | Data processing using multiply-accumulate instructions A data processing system is described utilizes a multiplier-accumulator 108 that performs both a first class of multiply-accumulate instructions and a second class of multiply-accumulate instructions. The first class of multiply-accumulate instructions ar... | 12/10/1996 |
| 5578040 | Ocular repair system and apparatus Apparatus for surgical repair of a detached retina includes an array of insulated electrodes that can be positioned adjacent the rear of an eye near the detachment site for selective excitation of pairs of the electrodes to selectively develop electrostat... | 11/26/1996 |
| 5573458 | Air-conditioner outlet An air-conditioner outlet mounted into the holes predetermined on the wall comprises a seat with multiple wind outlets having a slot therein for slidably receiving a pushing button to adjust a plurality of movable leaves horizontally and elevationally. A ... | 11/12/1996 |
| 5571172 | Method and apparatus for endoscopic grafting Method and apparatus for reconstructing target tissue by grafting uses a stabilizing balloon cannula having an endoscope for visualizing the placement of the graft during the procedure. The method and apparatus advances a sheathed graft to the target tiss... | 11/05/1996 |
| 5568646 | Multiple instruction set mapping A data processing system is described utilising multiple instruction sets. The program instruction words are supplied to a processor core 2 via an instruction pipeline 6. As program instruction words of a second instruction set pass along the instruction ... | 10/22/1996 |
| 5563835 | Sense amplification in data memories A data memory includes a memory cell that operates to generate two complementary data outputs indicative of a data bit stored in the memory cell. First and second sense amplifiers set an output latch to a first output logic state in response to a first st... | 10/08/1996 |
| 5542593 | Tape guides for magnetic tape equipment A tape guide for operation in contact with the back side of magnetic tape exhibits an increase in the coefficient of friction between the tape guide and the tape with increased wear of the guide surface associated with repeated passes of tape in sliding e... | 08/06/1996 |
| 5543643 | Combined JFET and MOS transistor device, circuit A transistor circuit is formed on a substrate having source and drain electrodes and multiple current-controlling gates. The two current-controlling gates are separated by spacer oxide material. The first gate is an metal oxide semiconductor (MOS) gate th... | 08/06/1996 |
| 5539631 | Converter circuits using a silicon controlled rectifier A voltage converter circuit uses a silicon-controlled rectifier for converting input voltage to selected levels of output voltage. The silicon-controlled rectifier is connected in a circuit including a capacitor which oscillates between charging and disch... | 07/23/1996 |
| 5528133 | Method and apparatus for determining the quality of a colloidal suspension A method and apparatus for determining the quality of a colloidal suspension. According to the method of the present invention, an oscillating input electrical signal is applied simultaneously to a sample of the colloidal suspension to be tested and to a ... | 06/18/1996 |
| 5528529 | Electronic multiplying and adding apparatus and method A multiply-accumulate circuit is described in which upon each multiply iteration some of the accumulate value bits are incorporated into the result with lower order subsequently non-changing bits being latched. In this way, a wide accumulate value can be ... | 06/18/1996 |
| 5528303 | Synchronizing signal active filter and method An integrated active filter and sync separator circuit operates on precision internal reference sources to set the filter cut off frequency as a function of resistance of an external resistor. The active filter eliminates the source of sync tip crushing a... | 06/18/1996 |
| 5525971 | Integrated circuit An integrated circuit comprises a plurality of data handling devices interconnected to exchange data by an interconnection bus during a first mode of operation; and diagnostic control means, responsive to a diagnostic device external to the integrated cir... | 06/11/1996 |
| 5522562 | Tape cartridge and method of making the same A data tape cartridge is formed on a baseplate of polymeric material which supports mounting pins and tape guides thereon for supporting tape components in rigid and dimensionally-stable manner using integrally formed bosses to support the mounting pins a... | 06/04/1996 |
| 5519854 | Write request interlock A CPU core 4 can operate at either an internal clock frequency fclk or an external clock frequency mclk. When operating at the internal clock frequency fclk, write request signals are buffered in a write buffer 10. When operating at the external clock fre... | 05/21/1996 |
| 5512851 | Circuit synchronization when switching between multiple clock signals using a variable advance controller A data processing system having a first circuit and a second circuit that together control a third circuit by a respective first control signal and a second control signal. The first circuit issues a request signal to the second circuit to trigger initiat... | 04/30/1996 |
