Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1993-12-13
1995-11-07
Kim, Ken S.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324309, 324312, 395500, 364DIG1, G06F 930
Patent
active
054653614
ABSTRACT:
An extremely fast and efficient Linker for a Magnetic Resonance Imaging (MRI) system Nuclear Magnetic Resonance (NMR) pulse control sequencer efficiently derives subsequent blocks of microcode to be loaded by using the contents of a memory buffer containing previously loaded microcode as a template, Most of the template is reused "as is". Only the relatively few field values in the microinstructions which change from one signal generation process, or cycle, to the next are replaced with new values. Offsets are tabulated of instructions which have associated multi-entry cycle indexed program change table (PCT) values. When further code is to be linked and loaded, the linker accesses the PCTs based on the table and to inserts new values into the appropriate instruction fields. The microcode memory image may be continuously maintained in a host memory buffer and re-edited successive times. The Fast Linker provided by the present invention is capable of continually loading microcode into a sequencer writable control store, and is fast enough to run under a time shared operating system at the same time a higher priority data acquisition and display process is executing.
REFERENCES:
patent: 4667290 (1987-05-01), Goss et al.
patent: 4707661 (1987-11-01), Hoenninger, III
patent: 4812981 (1989-03-01), Chan et al.
patent: 4845613 (1989-04-01), Netter et al.
patent: 4870397 (1989-09-01), Soto et al.
patent: 4912633 (1990-03-01), Schweizer et al.
patent: 4947315 (1990-08-01), Sokolow et al.
patent: 4992971 (1991-02-01), Hayashi
patent: 5025391 (1991-06-01), Filby et al.
patent: 5038296 (1991-08-01), Sano
patent: 5099233 (1992-03-01), Keenan
patent: 5121498 (1992-06-01), Gilbert et al.
Clark, "Pulsed Nuclear Resonance Apparatus," 35 Review of Scientific Instruments, No. 3, p. 316, (Mar. 1964).
Dick, "A Pulse Programmer for High-Power Nuclear Resonance," 48 Journal of Physics E: Scientific Instruments, p. 1054, (1976).
Conway et al, "Circuit for A Digital Pulse Programmer," 48 Rev. Sci. Instrum., No. 6, p. 656, (Jun. 1977).
Caron, "A New Programmable Timer Designed for Pulsed NMR," 31 Journal of Magnetic Resonance, p. 357 (1978).
Case et al, "Versatile Pulse Sequence Generator for Pulse NMR," 35 Journal of Magnetic Resonance, p. 439, (1979).
Dart, "Highly Flexible Pulse Programmer for NMR Applications," 51 Rev. Sci. Instrum., No. 2, p. 224, (Feb. 1980).
Thomann et al, "Digital Pulse Programmer for An Electron-spin-resonance Computer-controlled Pulsed Spectrometer," 55 Rev. Sci. Instrum., No. 3, p. 389, (Mar. 1984).
Jensen et al, "A Universal Pulse Programmer for NMR Imaging," Proceedings of the Third Annual SMRM, p. 379, (1984).
Sidky et al, "State-machine Digital Pulse Generator," 59 Rev. Sci. Instrum., No. 5, p. 806, (May 1988).
Wachter et al, "Enhanced State-machine Pulse Programmer for Very-high-precision Pulse Programming," 59 Rev. Sci. Instrum., No. 10, p. 2285, (Oct. 1988).
F H. Al-Riahi, "Software-controlled Memory Duplication," 9Microprocessors and Microsystems, No. 1, (Jan./Feb. 1985).
Kim Ken S.
The Regents of the University of California
LandOfFree
Microcode linker/loader that generates microcode sequences for M does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microcode linker/loader that generates microcode sequences for M, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microcode linker/loader that generates microcode sequences for M will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-202653