Patents Represented by Attorney, Agent or Law Firm L. Anne Kinsman
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Patent number: 6549483Abstract: A row addressing circuit for DRAM memory is disclosed. Additional address or mode bits are used to dynamically select between long page and short page access modes, and to dynamically select between single cell per bit and dual, or two cell per bit modes in each memory bank within a memory block. In the short page access mode, only one wordline in a memory block is activated. In the long page access mode, two wordlines in the memory block are activated for accessing twice the number of bits as in short page access mode. In the single cell per bit mode, one bit of data is stored in one DRAM cell. In the two cell per bit mode, the row addressing circuit simultaneously activates two wordlines in a bank of the memory block to access one DRAM cell connected to each bitline of a pair of complementary bitlines for writing and reading complementary data. The row addressing circuit can combine the different access modes for system design flexibility.Type: GrantFiled: April 1, 2002Date of Patent: April 15, 2003Assignee: ATMOS CorporationInventors: Wlodek Kurjanowicz, Jacek Wiatrowski, Dariusz Kowalczyk, Greg Popoff
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Patent number: 6522596Abstract: A system and method for reduction of power consumed by a searchline buffer and control circuit during a CAM search-and-compare operation. The data buffer circuit samples one bit of a search word and a mask bit for driving a pair of complementary searchlines with the appropriate logic levels. The complementary searchlines are precharged to a mid-point voltage level between the high logic level voltage and the low logic level voltage during a precharge phase. The mid-point voltage level is applied on each searchline by sharing charge from the searchline at the high logic level voltage with the searchline at the low logic level voltage. Additional control logic compares the searchline data of the current search-and-compare operation with the next search-and-compare operation, to inhibit searchline precharging when both searchline data are at the same logic level.Type: GrantFiled: June 28, 2001Date of Patent: February 18, 2003Assignee: Mosaid Technologies IncorporatedInventors: Peter B. Gillingham, Abdullah Ahmed
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Patent number: 6520509Abstract: A holder for holding a tool bit having an elongated connector means with a first end and a second end. The elongated connector means has a central longitudinal hole, of a cross-section corresponding to the cross-section of a mounting portion of the tool bit, at the first end, and a tool mount at the second end, and where the elongated connector means has a first circumferential groove adjacent the second end and a second circumferential groove adjacent the first end. A first sleeve is arranged to reciprocally slide over the connector between a first end position and a second end position, where the first sleeve has a third end facing the tool bit and a fourth end facing the hand tool.Type: GrantFiled: August 11, 2000Date of Patent: February 18, 2003Assignee: Maxtech Manufacturing Inc.Inventors: Kailash C. Vasudeva, Maz A. Hasan
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Patent number: 6504775Abstract: An architecture and method for fast precharge of bitlines in a densely packed, dynamic content addressable memory is disclosed. The dynamic content addressable memory cells are arranged according to an open bitline architecture to obtain high packing density. The bitlines are precharged through equalization between every two adjacent open bitline pairs. More specifically, a bitline and its adjacent neighbouring bitline on the same side of the bitline sense amplifiers are equalized at several locations along the bitlines such that they are equalized at high speed, which is typically not available in open bitlines architectures. Hence the adjacent bitlines are precharged in a manner similar to a folded bitline architecture. Additional equalization circuits are connected between the complementary bitlines of each open bitline pair, therefore during the precharge phase, all four bitlines of the two open bitline pairs are equalized with each other.Type: GrantFiled: September 21, 2001Date of Patent: January 7, 2003Assignee: Mosaid Technologies Incorporated KanataInventors: Peter P Ma, Abdullah Ahmed, Valerie L Lines
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Patent number: 6483733Abstract: A dynamic content addressable memory (CAM) is disclosed. The dynamic content addressable memory includes at least two pairs of bitlines coupled to opposite sides of at least two sense amplifiers in an open bitline configuration. Each bitline of each pair of bitlines is coupled to one of the at least two sense amplifiers, and a plurality of ternary dynamic content addressable memory cells are coupled to each of the at least pairs of bitlines. Each ternary dynamic content addressable memory cell is also coupled to a pair of search lines, a matchline, a word line and a discharge line, and further stores two bites of data in stacked capacitor storage cells. The bitlines on either side of the sense amlifiers are of equal length, and the pair of searchlines are arranged parallel to the bitlines.Type: GrantFiled: October 17, 2001Date of Patent: November 19, 2002Assignee: Mosaid Technologies IncorporatedInventors: Valerie Lines, Peter B. Gillingham, Abdullah Ahmed, Tomasz Wojcicki
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Patent number: 6085914Abstract: A garment sorter for semi-automating the sorting of bulk used clothing, and a method of sorting such clothing. Bales of clothing are uncompressed, and single articles of clothing are fed to an operator. Equally, the system can be used for sorting loose clothing. The operator identifies the article verbally, or by keypad entry. Voice recognition software, or other appropriate application software, recognizes the identification, and associates an address with the identified article. The article is then fed to a compacting device that ensures that it is retained within a certain length along a transfer conveyor. The compacted article is then transported to transfer station where a pneumatic pusher, under the control of a PLC, pushes the identified article off the conveyor into a bin, or secondary sort system.Type: GrantFiled: March 24, 1999Date of Patent: July 11, 2000Assignee: H. Salb InternationalInventors: Safdarali Tobaccowala, Fatehali Mohamed
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Patent number: 6066256Abstract: A continuous process for the biological solubilization of heavy metals from primary or other metal-laden sewage that utilizes indigenous sulphur oxidizing bacteria and elemental sulphur as the energy source, prevents nitrite formation and minimizes the residual sulphur remaining in the processed biosolids.Type: GrantFiled: April 10, 1998Date of Patent: May 23, 2000Inventors: J. Glynn Henry, Durga Prasad
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Patent number: 6059258Abstract: A support structure for temporarily shoring poured concrete slabs in place. The support structure can be assembled and/or disassembled on site. The structure includes post shores which act as the legs of a shoring tower when assembled with ledgers, stringers, joists and/or cross braces, but can also be used separately as single post shores. The support structure can be adjusted to a number of heights and configurations. The ledgers are mounted to the post shores with T-bolts for ease of assembly and disassembly.Type: GrantFiled: October 9, 1998Date of Patent: May 9, 2000Inventor: George W. Jackson
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Patent number: 6025727Abstract: A device and method for measuring changes in denier, percent finish-on-yarn, interlacing of polymer fiber, and other fiber properties, in real time as the fiber is being manufactured. The device uses an electrode driven at a discrete voltage to induce a current which changes in amplitude and/or phase in response to changes in denier, finish-on-yarn and/or interlacing of a fiber. A sensing system samples the current and detects changes in the amplitude and/or phase. A computer, running an application program, quantifies the change and determines the applicable property.Type: GrantFiled: November 20, 1998Date of Patent: February 15, 2000Assignee: Instrumar LimitedInventors: Stuart Louis Inkpen, Dana Charles Linfield, Christopher David Nolan, John Charles Ebenezer Hall, Christopher Hext Marshall, Heather Lynn Spearns
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Patent number: 5993722Abstract: A ceramic heater device for use in a glow plug for a diesel engine has a gradually varying cross-sectional composition which eliminates distinct interfacial junctions between a resistive layer, an insulative layer and a highly conductive layer. The heater is manufactured by slip casting where the proportions of conductive and non-conductive ceramic particles in a slip are varied as the slip is passed through an absorbent mold.Type: GrantFiled: June 25, 1997Date of Patent: November 30, 1999Assignee: Le-Mark International Ltd.Inventor: Stephen J. Radmacher