Patents by Inventor William W. Chow
William W. Chow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7452032Abstract: A resting device assembly for supporting a person during a procedure includes a resting device and an armrest. The resting device supports the person during the treatment and includes a device frame. The armrest includes an arm support, a frame bracket, a frame pivot, and a support arm pivot. The arm support supports an arm of the person. The frame pivot connects the frame bracket to the device frame, and allows the frame bracket and the arm support to concurrently pivot relative to the device frame. The support arm pivot connects the arm support to the frame bracket and allows the arm support to pivot relative to the frame bracket. In certain embodiments, the two pivots of the armrest assembly allows for improved adjustability of the armrest. As a result thereof, the person is more comfortable during the manicure or other procedure.Type: GrantFiled: September 26, 2006Date of Patent: November 18, 2008Assignee: Earthlite Massage Tables, Inc.Inventors: Jon W. Roleder, William W. Chow, Oscar Mendez
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Patent number: 7447197Abstract: A network node for processing messages transmitted via a network, the node including: a first circuit providing a processor-based node path; a second circuit, coupled to the first circuit, providing a switch-based node path; and a memory storing mapping information accessible by the first and second circuits, wherein the processing of messages received by the network node is allocated between the first and second circuit based on the mapping information.Type: GrantFiled: April 4, 2005Date of Patent: November 4, 2008Assignee: QLOGIC, CorporationInventors: William Clinton Terrell, Wayland Jeong, William W. Chow, Gordon Larimer
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Patent number: 7392377Abstract: An on-line value bearing item (VBI) printing system that includes one or more cryptographic modules and a central database is disclosed. The cryptographic modules are capable of implementing the USPS Information Based Indicia Program Postal Security Device Performance Criteria and other required VBI standards. The modules encipher the information stored in the central database for all of the on-line VBI system customers and are capable of preventing access to the database by unauthorized users. Additionally, the cryptographic module is capable of preventing unauthorized and undetected modification, including the unauthorized modification, substitution, insertion, and deletion of VBI related data and cryptographically critical security parameters.Type: GrantFiled: February 26, 2002Date of Patent: June 24, 2008Assignee: Stamps.ComInventors: Craig L. Ogg, William W. Chow
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Patent number: 7236956Abstract: An on-line value bearing item (VBI) printing system that includes one or more cryptographic modules and a central database is disclosed. The cryptographic modules are capable of implementing the USPS Information Based Indicia Program Postal Security Device Performance Criteria and other required VBI standards. The modules encipher the information stored in the central database for all of the on-line VBI system customers and are capable of preventing access to the database by unauthorized users. Additionally, the cryptographic module is capable of preventing unauthorized and undetected modification, including the unauthorized modification, substitution, insertion, and deletion of VBI related data and cryptographically critical security parameters.Type: GrantFiled: October 16, 2000Date of Patent: June 26, 2007Assignee: Stamps.comInventors: Craig L. Ogg, William W. Chow
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Patent number: 7216110Abstract: An on-line value bearing item (VBI) printing system that includes one or more cryptographic modules and a central database is disclosed. The cryptographic modules are capable of implementing the USPS Information Based Indicia Program Postal Security Device Performance Criteria and other required VBI standards. The modules encipher the information stored in the central database for all of the on-line VBI system customers and are capable of preventing access to the database by unauthorized users. Additionally, the cryptographic module is capable of preventing unauthorized and undetected modification, including the unauthorized modification, substitution, insertion, and deletion of VBI related data and cryptographically critical security parameters.Type: GrantFiled: October 16, 2000Date of Patent: May 8, 2007Assignee: Stamps.comInventors: Craig L. Ogg, William W. Chow, Girish Venkat, Piers C. Lingle
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Patent number: 6868406Abstract: An on-line value bearing item (VBI) printing system that includes one or more cryptographic modules and a central database is disclosed. The cryptographic modules are capable of implementing the USPS Information Based Indicia Program Postal Security Device Performance Criteria and other required VBI standards. The modules encipher the information stored in the central database for all of the on-line VBI system customers and are capable of preventing access to the database by unauthorized users. Additionally, each cryptographic module is capable of providing audit support functions that enable secure logging of all sensitive actions.Type: GrantFiled: October 16, 2000Date of Patent: March 15, 2005Assignee: Stamps.ComInventors: Craig L. Ogg, William W. Chow
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Patent number: 6755477Abstract: A therapeutic sling seat comprising a flexible material which is non-uniform in stiffness providing maximum contact surface area with the body of a person seated in the seat by spreading the forces away from high pressure areas using multiaxis tension forces. The seat material in tension adapts to the contour of the posterior of the seated person. By controlling the pressures on the ischial tuberosities, physical problems such as ulcers can be avoided.Type: GrantFiled: July 23, 2001Date of Patent: June 29, 2004Inventor: William W. Chow
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Publication number: 20020178354Abstract: An on-line value bearing item (VBI) printing system that includes one or more cryptographic modules and a central database is disclosed. The cryptographic modules are capable of implementing the USPS Information Based Indicia Program Postal Security Device Performance Criteria and other required VBI standards. The modules encipher the information stored in the central database for all of the on-line VBI system customers and are capable of preventing access to the database by unauthorized users. Additionally, the cryptographic module is capable of preventing unauthorized and undetected modification, including the unauthorized modification, substitution, insertion, and deletion of VBI related data and cryptographically critical security parameters.Type: ApplicationFiled: February 26, 2002Publication date: November 28, 2002Inventors: Craig L. Ogg, William W. Chow
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Publication number: 20020014794Abstract: A therapeutic sling seat comprising a flexible material which is non-uniform in stiffness providing maximum contact surface area with the body of a person seated in the seat by spreading the forces away from high pressure areas using multiaxis tension forces. The seat material in tension adapts to the contour of the posterior of the seated person. By controlling the pressures on the ischial tuberosities, physical problems such as ulcers can be avoided.Type: ApplicationFiled: July 23, 2001Publication date: February 7, 2002Inventor: William W. Chow
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Patent number: 6264279Abstract: A therapeutic sling seat comprising a flexible material which is non-uniform in stiffness providing maximum contact surface area with the body of a person seated in the seat by spreading the forces away from high pressure areas using multiaxis tension forces. The seat material in tension adapts to the contour of the posterior of the seated person. By controlling the pressures on the ischial tuberosities, physical problems such as ulcers can be avoided.Type: GrantFiled: January 21, 2000Date of Patent: July 24, 2001Inventor: William W. Chow
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Patent number: 6247139Abstract: A method and apparatus for transparent failover of a filesystem within a computer cluster is provided. For failover protection, a filesystem is physically connected to an active server node and a standby server node. A cluster file system provides distributed access to the filesystem throughout the computer cluster. The cluster file system monitors the progress of each operation performed on the failover protected filesystem. If the active server node should fail during an operation, all processes performing operations on the failover protected filesystem are caused to sleep. The filesystem is then relocated to the standby server node. The cluster file system then awakens each sleeping process and retries each pending operation.Type: GrantFiled: April 30, 1998Date of Patent: June 12, 2001Assignee: Compaq Computer Corp.Inventors: Bruce J. Walker, John L. Byrne, William W. Chow, John A. Gertwagen, Laura L. Ramirez, David B. Zafman
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Patent number: 6122629Abstract: A system for protection of filesystem data integrity within a computer cluster is provided. The system uses redundant data caches at client and server nodes within the computer cluster. Caching of filesystem data is controlled so that non-shared files are preferably cached at client nodes. This increases filesystem performance within the computer cluster and ensures that failures may not result in a loss of modified filesystem data without a corresponding loss to the process(es) accessing that data. Shared files are cached at the server node and a backup cache node. This protects modified filesystem data against any single node failure.Type: GrantFiled: April 30, 1998Date of Patent: September 19, 2000Assignee: Compaq Computer CorporationInventors: Bruce J. Walker, David B. Zafman, William W. Chow
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Patent number: 6082824Abstract: A therapeutic sling seat comprising a flexible material which is non-uniform in stiffness providing maximum contact surface area with the body of a person seated in the seat by spreading the forces away from high pressure areas using multiaxis tension forces. The seat material in tension adapts to the contour of the posterior of the seated person. By controlling the pressures on the ischial tuberosities, physical problems such as ulcers can be avoided.Type: GrantFiled: November 6, 1997Date of Patent: July 4, 2000Inventor: William W. Chow
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Patent number: 5475834Abstract: A method and system for integrating migration level two (ML2) and backup tape processing provide for the backup, archival, and/or restoration of ML2 tape files without the use of tape mounts. In this manner, the amount of data movement required to recover from data loss is significantly reduced. Tape files may be recovered to their original status, even if the file has migrated to ML2. The status of the data is preserved after such a recovery operation. In this manner, data movement is reduced because no remigration of data is required after a recovery.Type: GrantFiled: October 26, 1992Date of Patent: December 12, 1995Assignee: International Business Machines CorporationInventors: Matthew J. Anglin, William W. Chow, Robert M. Nugent, James M. Showalter, Gregory J. Tevis, Donald P. Warren, Jr.
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Patent number: 5090002Abstract: A position servo system has a position loop and a velocity loop. The position loop controls the stop-lock condition and provides for movement control within a range about the stop-lock position. The velocity circuit is employed for movements outside of the range of the position servo circuit. When the velocity servo's loop is being used, a compare circuit compares the servo drive signal from the velocity circuit with a signal generated by the position servo loop which is tracking the velocity servo loop. When the compare circuit finds that the servo drive signals have equal amplitudes, then the velocity servo loop is disconnected from an actuator with the position servo loop then connected to the activation for completing the movement to a desired or target stop-lock position. The above-indicated servo system controls a topping or fine actuator carried on a carriage moved by a coarse actuator.Type: GrantFiled: March 7, 1989Date of Patent: February 18, 1992Assignee: International Business Machines CorporationInventors: William W. Chow, Alan A. Fennema, Ian E. Henderson, Ronald J. Kadlec
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Patent number: 5046060Abstract: In a disk recorder, unintended radial portions of a transducer or head, herein termed "skating", is rapidly controlled and stopped before the transducer or head can hit a crash stop. Even when a braking operation is effected in the wrong direction, the skating compensation reverses the braking operation for rapidly stopping the radial motion of a transducer. A pair of clamp circuits are electrically interposed between the servo actuator drive signal generation and a run-out compensation circuit such that the clamping operation does not alter the run-out compensation. The sequences of machine states for effecting the state accommodation are described.Type: GrantFiled: June 14, 1990Date of Patent: September 3, 1991Assignee: International Business Machines CorporationInventors: William W. Chow, Alan A. Fennema, Ronald J. Kadlec
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Patent number: 5038333Abstract: A track-seeking apparatus of a disk recorder employs a track-crossing sensor to produce track-crossing signals. An oscillator is slaved to the sensor for supplying substitute track-crossing pulses in the absence of the sensor providing such pulses or when the radial velocity exceeds a threshold velocity. A velocity profile means alters the oscillator frequency so that the oscillator produces track-crossing pulses in accordance with the profile.Type: GrantFiled: May 5, 1989Date of Patent: August 6, 1991Assignee: International Business Machines CorporationInventors: William W. Chow, Alan A. Fennema, Benjamin C. Fiorino, Ian E. Henderson, Ronald J. Kadlec, Spencer D. Roberts
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Patent number: 4842177Abstract: A tape support which provides several different functions in a reel-to-reel tape drive is disclosed. The tape support provides means for sensing tension in the tape, buffers or decouples the tape at the magnetic head from any perturbations arising at the take-up reel, and reliably guides the tape along the tape path. The tape travels along an arcuate surface of the tape support on an air bearing. A port in the arcuate surface senses pressure between the tape and the arcuate surface. This pressure is communicated to a transducer which provides an output representing the tension on the tape. Flanges on the ends of the tape support provide guiding of the tape over the air bearing and also provide venting of the air bearing to prevent tape vibration. A purge line expels a gaseous medium out of the sense port thereby keeping the sense port clear of contaminants.Type: GrantFiled: December 15, 1986Date of Patent: June 27, 1989Assignee: International Business Machines CorporationInventors: Bernard L. Callender, William W. Chow, Thomas G. Osterday, William J. Rueger
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Patent number: 4420782Abstract: Ferrite read and write modules of a magnetic head assembly that are aligned and positioned within a nonferrite housing are clamped by a leaf spring between the walls of the housing. The leaf spring compensates for thermal mismatch between the ferrite modules and the housing, and compensates for stress fluctuation that occurs with temperature change. The clamping force of the leaf spring is precisely controlled.Type: GrantFiled: June 30, 1981Date of Patent: December 13, 1983Assignee: International Business MachinesInventors: Armando J. Argumedo, William W. Chow, Robert D. Freeman, Stawomir P. Kleczkowski
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Patent number: 4406722Abstract: Diffusion bonding of dissimilar ceramics can be accomplished by the application of pressure only while the ceramics are at a temperature at which their expansion rates are the same. A process for manufacturing magnetic head cores is disclosed where a magnetic ferrite is diffusion bonded to a non-magnetic ceramic by heating the core pieces to the expansion rate crossover temperature and then applying the diffusion bonding pressure. The pressure is removed either before or after the bonded pieces are cooled.Type: GrantFiled: May 3, 1982Date of Patent: September 27, 1983Assignee: International Business Machines Corp.Inventors: William W. Chow, Eugene B. Rigby