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公开(公告)号:EP1370966A4
公开(公告)日:2008-12-24
申请号:EP02733807
申请日:2002-02-25
Applicant: IBM
Inventor: BLUMRICH MATTHIAS A , CHEN DONG , CHIU GEORGE L , CIPOLLA THOMAS M , COTEUS PAUL W , GARA ALAN G , GIAMPAPA MARK E , HEIDELBERGER PHILIP , KOPSCAY GERALD V , MOK LAWRENCE S , TAKKEN TODD E
IPC: G06F11/10 , G06F9/46 , G06F9/52 , G06F11/00 , G06F11/20 , G06F12/00 , G06F12/02 , G06F12/08 , G06F12/10 , G06F13/00 , G06F13/24 , G06F13/38 , G06F15/173 , G06F15/177 , G06F15/80 , G06F17/14 , H04L1/00 , H04L7/02 , H04L7/033 , H04L12/28 , H04L12/56 , H04L25/02 , H05K7/20 , G06F15/16 , G06F15/00
CPC classification number: H05K7/20836 , F24F11/77 , G06F9/52 , G06F9/526 , G06F15/17381 , G06F17/142 , G09G5/008 , H04L7/0338 , Y02B30/746
Abstract: A fan module including: two or more individual fans, each fan having an air movement means and a motor engaged with the air movement means for accelerating air entering each of the two or more individual fans; a temperature sensor for sensing a temperature associated with the two or more fans and for outputting a first signal corresponding to the temperature; rotational speed sensor for outputting a second signal corresponding to a rotational speed of each of the two or more fans; and a processor for receiving the first and second signals and controlling the two or more individual fans based on the first and second signals.
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公开(公告)号:JPH08271855A
公开(公告)日:1996-10-18
申请号:JP4709896
申请日:1996-03-05
Applicant: IBM
Inventor: DOANY FUAD ELIAS , DOVE DEREK BRIAN , SINGH RAMA NAND , ROSENBLUTH ALAN EDWARD , CHIU GEORGE L , CIPOLLA THOMAS MARIO , WILCZYNSKI JANUSZ STANISLAW
IPC: G02F1/13 , G02F1/1335 , G03B21/00 , H04N5/74 , H04N9/31
Abstract: PROBLEM TO BE SOLVED: To provide an efficient and compact optical system for full color high resolution projection type display using a reflective double-refracting spatial light modulator such as a liquid crystal light valve. SOLUTION: This optical system is provided with reflective double-refracting light valves 26-28, a polarized beam splitter 22, color image coupling prisms 30-32, a lighting system 18, a projection lens 38, color/contrast control filters 43-46 and a screen 39 arranged in constitution to provide an advantage of high resolution color display. This optical system is provided with a quarter wavelength plate 48 arranged to suppress stray reflection from the projection lens 38. This optical system is also provided with a second quarter wavelength plate 50 arranged at the screen 39, and a polarizing film 52 arranged at the second quarter wavelength plate 50 so as to restrain the light in the surroundings from illuminating the screen 39 and entering the optical system.
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公开(公告)号:DE69611563D1
公开(公告)日:2001-02-22
申请号:DE69611563
申请日:1996-02-13
Applicant: IBM
Inventor: CHIU GEORGE L , CIPPOLA THOMAS M , DOANY FUAD E , DOVE DEREK B , ROSENBLUTH ALAN E , SINGH RAMA N , WILCZYNSKI JANUSZ S
IPC: G02F1/13 , G02F1/1335 , G03B21/00 , H04N5/74 , H04N9/31
Abstract: An optical system is described consisting of reflection birefringent light valves, polarizing beam splitter, color image combining prisms, illumination system, projection lens, filters for color and contrast control, and screen placed in a configuration offering advantages for a high resolution color display. The system includes a quarter wave plate positioned to suppress stray reflection from the projection lens. The system also includes a second quarter wave plate disposed on the screen and a polarizing film disposed on the second quarter wave plate to suppress ambient light from illuminating the screen and entering the system.
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公开(公告)号:DE69003565D1
公开(公告)日:1993-11-04
申请号:DE69003565
申请日:1990-02-19
Applicant: IBM
Inventor: CHIU GEORGE L , HALBOUT JEAN-MARC
Abstract: Accurate voltage measurements on fast changing waveforms are carried out via stroboscopic tunneling potentionmetry using a tunneling microscope. The scanning tunneling microscope (STM) includes a test probe (22), having a test probe tip (23), and a sample (24) (with a conductor (25) supported thereon carrying the waveform to be sampled) arranged for measurement. The test probe (22) is supported so that the test probe tip (23) exhibits motion toward and away from the sample (24). The distance between the test probe tip (23) and the sample (24) modulates the tunneling current. In one embodiment, the test probe tip (23) is driven by a mechanical oscillator (100) to produce the desired motion. The mechanical oscillator (100) operates at a very high frequency (for example in the GHz ranges. The tunneling current flowing between the conductor (25) and the tip (23) which is a strong function of the instantaneous potential on the sample (24) is then determined by the convolution of the motion with the exponential dependence of current with respect to distance (between tip (23) and conductor (25)). Sampling is synchronized with the motion of the test probe tip (23). In other embodiments, the mechanical oscillator (100) is driven by a crystal oscillator (10) or replaced by an acoustic modulator in either tip (23) or sample (24) which has the effect of modulating the distance between tip (23) and sample (24) for the same purpose.
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公开(公告)号:DE60237433D1
公开(公告)日:2010-10-07
申请号:DE60237433
申请日:2002-02-25
Applicant: IBM
Inventor: BLUMRICH MATTHIAS A , CHEN DONG , CHIU GEORGE L , CIPOLLA THOMAS M , COTEUS PAUL W , GARA ALAN G , GIAMPAPA MARK E , HEIDELBERGER PHILIP , KOPSCAY GERALD V , MOK LAWRENCE S , TAKKEN TODD E
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公开(公告)号:AT479147T
公开(公告)日:2010-09-15
申请号:AT02733807
申请日:2002-02-25
Applicant: IBM
Inventor: BLUMRICH MATTHIAS A , CHEN DONG , CHIU GEORGE L , CIPOLLA THOMAS , COTEUS PAUL , GARA ALAN , GIAMPAPA MARK , HEIDELBERGER PHILIP , KOPSCAY GERALD , MOK LAWRENCE , TAKKEN TODD
IPC: G06F11/10 , G06F15/16 , G06F9/46 , G06F9/52 , G06F11/00 , G06F11/20 , G06F12/00 , G06F12/02 , G06F12/08 , G06F12/10 , G06F13/00 , G06F13/24 , G06F13/38 , G06F15/00 , G06F15/173 , G06F15/177 , G06F15/80 , G06F17/14 , H04L1/00 , H04L7/02 , H04L7/033 , H04L12/28 , H04L12/56 , H04L25/02 , H05K7/20
Abstract: A novel massively parallel supercomputer of hundreds of teraOPS-scale includes node architectures based upon System-On-a-Chip technology, i.e., each processing node comprises a single Application Specific Integrated Circuit (ASIC). Within each ASIC node is a plurality of processing elements each of which consists of a central processing unit (CPU) and plurality of floating point processors to enable optimal balance of computational performance, packaging density, low cost, and power and cooling requirements. The plurality of processors within a single node individually or simultaneously work on any combination of computation or communication as required by the particular algorithm being solved. The system-on-a-chip ASIC nodes are interconnected by multiple independent networks that optimally maximizes packet communications throughput and minimizes latency. The multiple networks include three high-speed networks for parallel algorithm message passing including a Torus, Global Tree, and a Global Asynchronous network that provides global barrier and notification functions.
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公开(公告)号:CA2437039A1
公开(公告)日:2002-10-24
申请号:CA2437039
申请日:2002-02-25
Applicant: IBM
Inventor: BLUMRICH MATTHIAS A , CHIU GEORGE L , TAKKEN TODD E , CIPOLLA THOMAS M , CHEN DONG , MOK LAWRENCE S , COTEUS PAUL W , GARA ALAN G , KOPSCAY GERALD V , HEIDELBERGER PHILIP , GIAMPAPA MARK E
IPC: G06F11/10 , G06F9/46 , G06F9/52 , G06F11/00 , G06F11/20 , G06F12/00 , G06F12/02 , G06F12/08 , G06F12/10 , G06F13/00 , G06F13/24 , G06F13/38 , G06F15/173 , G06F15/177 , G06F15/80 , G06F17/14 , H04L1/00 , H04L7/02 , H04L7/033 , H04L12/28 , H04L12/56 , H04L25/02 , H05K7/20 , G06F15/16 , G06F15/00
Abstract: A novel massively parallel supercomputer of hundreds of teraOPS-scale includ es node architectures based upon System-On-a-Chip technology, where each processing node comprises a single Application Specific Integrated Circuit (ASIC). The ASIC nodes (20) are interconnected by multiple independent networks (26) that optimally maximizes packet communications throughput and minimizes latency. The multiple networks may include three high-speed networ ks for parallel algorithm message passing including a Torus, Global Tree, and a Global Asynchronous network that provides global barrier and notification functions. These multiple independent networks may be collaboratively or independently utilized according to the needs or phases of an algorithm for optimizing algorithm processing performance.
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公开(公告)号:DE69611563T2
公开(公告)日:2001-06-21
申请号:DE69611563
申请日:1996-02-13
Applicant: IBM
Inventor: CHIU GEORGE L , CIPPOLA THOMAS M , DOANY FUAD E , DOVE DEREK B , ROSENBLUTH ALAN E , SINGH RAMA N , WILCZYNSKI JANUSZ S
IPC: G02F1/13 , G02F1/1335 , G03B21/00 , H04N5/74 , H04N9/31
Abstract: An optical system is described consisting of reflection birefringent light valves, polarizing beam splitter, color image combining prisms, illumination system, projection lens, filters for color and contrast control, and screen placed in a configuration offering advantages for a high resolution color display. The system includes a quarter wave plate positioned to suppress stray reflection from the projection lens. The system also includes a second quarter wave plate disposed on the screen and a polarizing film disposed on the second quarter wave plate to suppress ambient light from illuminating the screen and entering the system.
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公开(公告)号:DE69003565T2
公开(公告)日:1994-05-11
申请号:DE69003565
申请日:1990-02-19
Applicant: IBM
Inventor: CHIU GEORGE L , HALBOUT JEAN-MARC
Abstract: Accurate voltage measurements on fast changing waveforms are carried out via stroboscopic tunneling potentionmetry using a tunneling microscope. The scanning tunneling microscope (STM) includes a test probe (22), having a test probe tip (23), and a sample (24) (with a conductor (25) supported thereon carrying the waveform to be sampled) arranged for measurement. The test probe (22) is supported so that the test probe tip (23) exhibits motion toward and away from the sample (24). The distance between the test probe tip (23) and the sample (24) modulates the tunneling current. In one embodiment, the test probe tip (23) is driven by a mechanical oscillator (100) to produce the desired motion. The mechanical oscillator (100) operates at a very high frequency (for example in the GHz ranges. The tunneling current flowing between the conductor (25) and the tip (23) which is a strong function of the instantaneous potential on the sample (24) is then determined by the convolution of the motion with the exponential dependence of current with respect to distance (between tip (23) and conductor (25)). Sampling is synchronized with the motion of the test probe tip (23). In other embodiments, the mechanical oscillator (100) is driven by a crystal oscillator (10) or replaced by an acoustic modulator in either tip (23) or sample (24) which has the effect of modulating the distance between tip (23) and sample (24) for the same purpose.
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