Patents by Inventor Joseph C. McAlexander
Joseph C. McAlexander 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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Publication number: 20030122707Abstract: There is disclosed an object locator system for obtaining information about the location of an individual, animal or moveable object, having a lightweight, attached object locator, that is present in a region served by a two-way paging system and a global positioning satellite system. The object locator may be selectively activated to conserve power or enabled to respond only when beyond a boundary.Type: ApplicationFiled: July 16, 2002Publication date: July 3, 2003Inventors: Jennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
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Patent number: 6518919Abstract: There is disclosed a method and apparatus for an object locator system (10) for requesting and obtaining information about the location of a mobile object, having attached thereon a lightweight object locator (42), operable in a region served by a two-way paging system (12) and a global positioning satellite system (50). The object locator (42) may be selectively activated to conserve power or enabled to respond only when beyond or within a boundary. Further, the object locator system (10) may provide the location information in several forms including rectangular or polar coordinates referred to a base station (18) or origin, position on a map display, etc.Type: GrantFiled: May 22, 2001Date of Patent: February 11, 2003Inventors: Jennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
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Patent number: 6480147Abstract: A position determining device is disclosed comprising a satellite navigation receiver for automatically providing computed position information, when the device has changed its position relative to a predetermined location, to a paging transmitter for transmission to a paging receiver for readout of the computed position information. The readout may be in the form of coordinates and may be accompanied by a message or alarm. The device may be configured as a portable unit of small size and economical manufacture.Type: GrantFiled: May 18, 2001Date of Patent: November 12, 2002Inventors: Jennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
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Patent number: 6441778Abstract: A locating device for attachment to an animal and adapted to obtain and communicate location information about the animal to a base station, comprising a controller having an input for location data and a first communication port; a satellite navigation system receiver coupled to a first antenna and having a location data output coupled to the location data input of said controller; a communication transceiver coupled to a second antenna to receive and transmit communications between the locating device and the base station and having a second communication port coupled to the first communication port of the controller; and a housing to enclose the controller, the satellite navigation system receiver and communication transceiver, configured to be attached to the animal.Type: GrantFiled: October 3, 2000Date of Patent: August 27, 2002Inventors: Jennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
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Patent number: 6421001Abstract: There is disclosed an object locator system (10) for requesting and obtaining information about the location of an individual animal or moveable object, having a lightweight, attached object locator (42), that is present in a region served by a two-way paging system (12) and a global positioning satellite system (50). The object locator (42) may be selectively activated to conserve power or enabled to respond only when beyond or within a boundary. Further, the object locator system (10) may provide the location information in several forms including rectangular or polar coordinates referred to a base station (18) or origin, position on a map display, etc.Type: GrantFiled: October 3, 2000Date of Patent: July 16, 2002Inventors: Jennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
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Publication number: 20020003493Abstract: A position determining device is disclosed comprising a satellite navigation receiver for automatically providing computed position information, when the device has changed its position relative to a predetermined location, to a paging transmitter for transmission to a paging receiver for readout of the computed position information. The readout may be in the form of coordinates and may be accompanied by a message or alarm. The device may be configured as a portable unit of small size and economical manufacture.Type: ApplicationFiled: May 18, 2001Publication date: January 10, 2002Applicant: Jennifer DurstInventors: Jennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
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Patent number: 6236358Abstract: There is disclosed a method and apparatus for an object locator system (10) for requesting and obtaining information about the location of a mobile object, having attached thereon a lightweight object locator (42), operable in a region served by a two-way paging system (12) and a global positioning satellite system (50). The object locator (42) may be selectively activated to conserve power or enabled to respond only when beyond or within a boundary. Further, the object locator system (10) may provide the location information in several forms including rectangular or polar coordinates referred to a base station (18) or origin, position on a map display, etc.Type: GrantFiled: July 28, 1999Date of Patent: May 22, 2001Inventors: Jennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
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Patent number: 6172640Abstract: There is disclosed an object locator system (10) for requesting and obtaining information about the location of an individual animal or moveable object, having a lightweight, attached object locator (42), that is present in a region served by a two-way paging system (12) and a global positioning satellite system (50). The object locator (42) may be selectively activated to conserve power or enabled to respond only when beyond or within a boundary. Further, the object locator system (10) may provide the location information in several forms including rectangular or polar coordinates referred to a base station (18) or origin, position on a map display, etc.Type: GrantFiled: July 28, 1999Date of Patent: January 9, 2001Inventors: Jennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
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Patent number: 4748349Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.Type: GrantFiled: October 27, 1987Date of Patent: May 31, 1988Assignee: Texas Instruments IncorporatedInventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
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Patent number: 4543500Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled drive transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.Type: GrantFiled: October 22, 1980Date of Patent: September 24, 1985Assignee: Texas Instruments IncorporatedInventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
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Patent number: 4543501Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.Type: GrantFiled: October 15, 1984Date of Patent: September 24, 1985Assignee: Texas Instruments IncorporatedInventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
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Patent number: 4533843Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.Type: GrantFiled: October 15, 1984Date of Patent: August 6, 1985Assignee: Texas Instruments IncorporatedInventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
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Patent number: 4418293Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.Type: GrantFiled: October 22, 1980Date of Patent: November 29, 1983Assignee: Texas Instruments IncorporatedInventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
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Patent number: 4370575Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.Type: GrantFiled: October 14, 1980Date of Patent: January 25, 1983Assignee: Texas Instruments IncorporatedInventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
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Patent number: 4288706Abstract: A random access read/write MOS memory device employs bistable latch or buffer circuits as the address inputs, data inputs, and the like. The buffers function to latch the data or address to allow the inputs to change states. The buffer is activated by TTL level inputs, exhibits low capacitance at its input, and switches states fast enough to allow rapid multiplexing of the addresses. Noise immunity is improved by selective implants of some of the transistors, and by use of filter capacitors connected between input nodes and Vss rather than Vdd.Type: GrantFiled: October 20, 1978Date of Patent: September 8, 1981Assignee: Texas Instruments IncorporatedInventors: Edmund A. Reese, Lionel S. White, Jr., Joseph C. McAlexander, III
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Patent number: 4280070Abstract: A random access read/write MOS memory device employs bistable latch or buffer circuits as the address inputs, data inputs, and the like. The buffers function to latch the data or address to allow the inputs to change states. The buffer is activated by TTL level inputs, exhibits low capacitance at its input, and switches states fast enough to allow rapid multiplexing of the addresses. Noise immunity is improved by selective implants of some of the transistors, and by use of filter capacitors connected between input nodes and Vss rather than Vdd.Type: GrantFiled: October 20, 1978Date of Patent: July 21, 1981Assignee: Texas Instruments IncorporatedInventors: Edmund A. Reese, Lionel S. White, Jr., Joseph C. McAlexander, III
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Patent number: 4239993Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.Type: GrantFiled: September 22, 1978Date of Patent: December 16, 1980Assignee: Texas Instruments IncorporatedInventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao