Patents by Inventor Wallace Matthews
Wallace Matthews 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: 6822966Abstract: A network communication device for directing data units over a communication network includes at least one input and/or output port arranged to receive and/or transmit data units, a plurality of buffer units divided into several sub-pools, and a buffer allocator for allocating buffer units between the sub-pools. The buffer allocator is arranged to determine a priority value for each sub-pool based on quality of service for each connection established at at least one port. The buffer allocator is also arranged to determine a utilization value of the port, and arranged to allocate buffer units for each sub-pool based on the priority value and based on the utilization value. The buffer allocator creates a precedence list to ensures that a minimal number of connections, which are established at a most utilized port, will suffer data unit loss while receiving the data units.Type: GrantFiled: March 1, 1999Date of Patent: November 23, 2004Assignee: Enterasys Networks, Inc.Inventors: Sivarama Seshu Putcha, Wallace Matthews
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Publication number: 20040032831Abstract: A method for determining the shortest simplest path in an optical network with mixed DWDM transmission characteristics, mixed switching methodologies (i.e. micro mirrors, bubbles, Electronic TDM, Electronic cross bar, optical signal regeneration, and wavelength translation using optical devices). Disclosed in the invention is: a.) a multi-layered network path determination method that resolves over-constrained routing requirements, b.) an application of A that resolves routing constraints described for the optical networking environment, c.) A Dense Mesh simplification method that reduces the computation and processing power to find the best approximate path through the network, d.) A caching strategy to cache approximate paths, rather than exact paths, and to age out cache entries just before they become incorrect e.) A method of calculating multiple metrics and checking them against routing requirements during the path determination process rather than afterwards (as is done usually) f.Type: ApplicationFiled: August 14, 2002Publication date: February 19, 2004Inventor: Wallace Matthews
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Publication number: 20030198241Abstract: A network communication device for directing data units over a communication network includes at least one input and/or output port arranged to receive and/or transmit data units, a plurality of buffer units divided into several sub-pools, and a buffer allocator for allocating buffer units between the sub-pools. The buffer allocator is arranged to determine a priority value for each sub-pool based on quality of service for each connection established at at least one port. The buffer allocator is also arranged to determine a utilization value of the port, and arranged to allocate buffer units for each sub-pool based on the priority value and based on the utilization value. The buffer allocator creates a precedence list to ensures that a minimal number of connections, which are established at a most utilized port, will suffer data unit loss while receiving the data units.Type: ApplicationFiled: March 1, 1999Publication date: October 23, 2003Inventors: SIVARAMA SESHU PUTCHA, WALLACE MATTHEWS
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Patent number: 6547415Abstract: A portable device is equipped with a clip for attachment thereof to an object. That device is provided with an undercut groove, and the clip is provided with a head fitting into that undercut groove. The clip is attached to the portable device by fitting that head of the clip into that undercut groove. A portable device may comprise a combination of an undercut groove and a device attachment clip having a head fit into that undercut groove. A clip for attachment of a portable device to an object may have a combination of a bent over end portion and lateral protrusions on that bent over end portion, such as for engagement of undercut sides of a groove in a portable device.Type: GrantFiled: June 29, 2000Date of Patent: April 15, 2003Assignee: Surefire, LLCInventor: John Wallace Matthews
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Publication number: 20020143920Abstract: A system and method for detecting or reporting service level or service outages on a network includes a meta service generator that operates on a network inventory to generate service definitions. The system is a server-based model, and each service definition includes usergroup and points of presence, thus instantiating multiple services in a manner that allows the definition to focus on relevant element events amid massive network event data, and detect service outages quickly and dependably. The outages, transaction spec outages and events so determined may be aggregated to provide overall measures that are compared with thresholds, performance criteria and other service metrics specified in a user Service Level Agreement (SLA) for billing, credit, evaluation or other purposes.Type: ApplicationFiled: March 28, 2002Publication date: October 3, 2002Applicant: OPTICOM, INC.Inventors: Roger Dev, Eric Rustici, Andrei Pandre, Wallace Matthews
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Patent number: 6439738Abstract: A battery powered portable electric light source has multiple sets of spare batteries contained in its battery compartment, whereby mixups between exhausted and fresh batteries are effectively avoided. A flashlight having a light output stronger than the mentioned electric light source is provided for use of batteries from the battery compartment of the mentioned portable container, and batteries are exchanged between that portable container and that flashlight. Apparatus for providing electric light have an electric light source requiring for energization a pair of batteries in series and a portable container for several pairs of these batteries connected each in series at a bottom of that container. Each of these several pairs of batteries includes a first battery having a first positive terminal and an opposite first negative terminal, and a second battery having a second positive terminal connected to that first negative terminal and an opposite second negative terminal.Type: GrantFiled: August 2, 2000Date of Patent: August 27, 2002Assignee: Surefire, LLCInventors: John Wallace Matthews, Paul Youngcho Kim, Luc Pierre Benoit
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Publication number: 20020083634Abstract: Electric apparatus including an electric battery composed of individually jacketed battery elements and a battery elements carrier of two or more compartments into which such battery elements are individually insertable side by side with all like terminals of such battery elements being on the same side in each compartment. A housing structure for an electric battery composed of individually jacketed battery elements has a lateral opening, and a battery housing cover preferably slideable on that housing structure over that lateral opening, with an electric lamp assembly on that housing structure and connectable to the electric battery in the housing structure.Type: ApplicationFiled: December 18, 2001Publication date: July 4, 2002Inventors: Paul Youngcho Kim, John Wallace Matthews
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Patent number: 6386730Abstract: A flashlight having a flashlight head with two merged yet independent lamp/reflector systems, the head including a common reflector structure having two reflectors of differing light projecting characteristics, the two reflectors arranged side by side with a common boundary across part of the common reflector structure. A flashlight holder and battery charger includes interacting surfaces on the flashlight and the holder that permit insertion of the flashlight into the holder only when the flashlight is in a predetermined position relative to the holder, require that the flashlight be manually moved or rotated in a predetermined direction after insertion for locking the flashlight in the holder and for permitting battery charging only when the flashlight's lamps are disconnected from the batteries, and require that the flashlight be manually moved or rotated in the opposite direction for permitting removal of the flashlight from the holder.Type: GrantFiled: April 21, 2000Date of Patent: May 14, 2002Assignee: Surefire, LLCInventor: John Wallace Matthews
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Patent number: 6378237Abstract: Apparatus for firing projectiles at targets and for illuminating such targets combine a projectile-firing weapon and a target illuminator. A track-and-slide combination includes a slide on the target illuminator and a track structure on the weapon for that slide, and a releasable slide-in-track stop in such rack-and-slide combination. In the case of a firearm that has a trigger actuated by a bent trigger finger of a shooter for the firing thereof, a push-button or transverse slide switch for the target illuminator may be mounted within reach of a pad of such trigger finger prior to actuation of the trigger. For example, the shooter may draw the firearm with his or her trigger finger then outstretched for actuation of the target illuminator switch, and may then bend such trigger finger for firing of the weapon by actuation of the trigger. Such and other appliances may have a battery compartment, and a contact plate interconnecting batteries in such compartment.Type: GrantFiled: November 24, 1999Date of Patent: April 30, 2002Assignee: Surefire, LLCInventors: John Wallace Matthews, Paul Youngcho Kim
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Publication number: 20020032760Abstract: A network is monitored for reports indicative of a connection state among ports of a communications network. Certain ports are designated as being in a transition, and a transition table is created for each transition. The transition table includes locations that directly relate the connectivity of a first port with respect to a second port, as well as locations that relate the connectivity of other ports. The contents of the transition table are evaluated to determine the likely configuration of the communications network. State machines may be used to resolve conflicting data within the transition table, by providing a likely connection output based upon different entries within the transition table. A voting scheme is used to evaluate the outputs of the state machines and update the transition table when appropriate, and the updated transition table may also be evaluated.Type: ApplicationFiled: August 10, 1998Publication date: March 14, 2002Inventors: WALLACE MATTHEWS, VICK VAISHNAVI
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Patent number: 6345464Abstract: Apparatus for firing projectiles at targets and for illuminating such targets include a projectile-firing elongate weapon having a fore-end structure and a target illuminator on that fore-end structure in a first quadrant between a vertical plane and a horizontal plane longitudinally through such elongate weapon in a firing position of that weapon. Additionally or alternatively, a target illuminator may include a housing in one piece with part of the fore-end structure. An electric lamp assembly for target illuminators, flashlights or other light sources has a support structure, a bezel structure on that support structure, and a shock-absorbed reflector structure inside that bezel structure. Such shock-absorbed reflector structure includes a reflector having a focal point, a first shock absorber between that reflector and the support structure and a second shock absorber between the bezel structure and that reflector.Type: GrantFiled: January 13, 1999Date of Patent: February 12, 2002Assignee: Surefire, LLCInventors: Paul Youngcho Kim, John Wallace Matthews
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Patent number: 6276088Abstract: Apparatus for firing projectiles at targets and for illuminating such targets combine a projectile-firing weapon and a target illuminator. A track-and-slide combination includes a slide on the target illuminator and a track on the weapon for that slide, and a releasable slide-in-track stop in such track-and-slide combination. In the case of a firearm that has a trigger actuated by a bent trigger finger of a shooter for the firing thereof, a push-button or transverse slide switch for the target illuminator may be mounted within reach of a pad of such trigger finger prior to actuation of the trigger. For example, the shooter may draw the firearm with his or her trigger finger then outstretched for actuation of the target illuminator switch, and may then bend such trigger finger for firing of the weapon by actuation of the trigger. Such and other appliances may have a battery compartment, and a contact plate interconnecting batteries in such compartment.Type: GrantFiled: December 24, 1998Date of Patent: August 21, 2001Assignee: Laser Products Ltd.Inventors: John Wallace Matthews, Paul Youngcho Kim
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Patent number: 6267279Abstract: A holstering device is made for an elongate hand weapon or is made as a standard holstering device for holstering any one of a number of different types of elongate hand weapons. Such holstering device extends along opposite first and second sides of any of these hand weapons and straddles that hand weapon between such opposite first and second sides when that hand weapon is holstered. The holstering device also includes a track structure having in that holstering device a first track at the mentioned first side and a second track at the mentioned second side. Each of such elongate hand weapons is equipped with an adapter having first and second slides complementary with the first and second tracks of the track structure for holstering the adapter in that track structure while holstering any of the elongate hand weapon in that holstering device.Type: GrantFiled: October 15, 1999Date of Patent: July 31, 2001Assignee: Laser Products Ltd.Inventor: John Wallace Matthews
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Patent number: 6222138Abstract: An electric appliance includes a first electric power supply of first batteries arranged in a first pattern, and alternatively a different second electric power supply of second batteries arranged in a second pattern. An electrical ON-OFF switch has an ON-OFF position push-button switch actuator and a rotary switch actuator which releasably blocks that ON-OFF position push-button switch actuator in an OFF position. A tail end is equipped with a bistable OFF and ON switching function and with a momentary ON switching function unified into one electric toggle switch having a stable OFF position, a stable ON position, and a momentary ON position. A flashlight beam is cast with a first lamp and reflector assembly, an alternative second lamp and reflector assembly is substituted for that first lamp and reflector assembly and a second light beam of a different configuration is cast with that alternative second lamp and reflector assembly.Type: GrantFiled: January 14, 2000Date of Patent: April 24, 2001Assignee: Laser Products Ltd.Inventors: John Wallace Matthews, Paul Youngcho Kim
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Patent number: 6112962Abstract: Holstering systems for hand weapons comprise a track structure provided as a holster for such hand weapons. Each hand weapon may be provided with an adapter complementary with the track structure. The holster may be a standard holster for different types of elongate hand weapons that may have adapters interfacing with such standard holster. Such holsters may have an accommodation for accessories. Security holsters prevent accidental and unauthorized removal of weapons from holsters, such as with the aid of detents, sensors of a hand of a wearer, or other detent deactivators.Type: GrantFiled: May 27, 1997Date of Patent: September 5, 2000Assignee: Laser Products Ltd.Inventor: John Wallace Matthews
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Patent number: 6046572Abstract: An electric appliance includes a first electric power supply of first batteries arranged in a first pattern, and alternatively a different second electric power supply of second batteries arranged in a second pattern. An electrical ON-OFF switch has an ON-OFF position push-button switch actuator ard a rotary switch actuator which releasably blocks that ON-OFF position push-button switch actuator in an OFF position. A tail end is equipped with a bistable OFF and ON switching function and with a momentary ON switching function unified into one electric toggle switch having a stable OFF position, a stable ON position, and a momentary ON position. A flashlight beam is cast with a first lamp and reflector assembly, an alternative second lamp and reflector assembly is substituted for that first lamp and reflector assembly and a second light beam of a different configuration is cast with that alternative second lamp and reflector assembly.Type: GrantFiled: December 5, 1997Date of Patent: April 4, 2000Assignee: Laser Products Ltd.Inventors: John Wallace Matthews, Paul Youngcho Kim
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Patent number: 5822305Abstract: A logical representation of a communications network topology has links which represent connections within a network, and models of ports representing elements of devices which form the connections of the network. The logical representation is created and maintained in response to reports from the network, such as new neighbor reports and lost neighbor reports. A new neighbor module creates or changes the logical representation in response to new neighbor reports, based upon whether the reporting port is recently attached and whether the new neighbor port is recently attached. A lost neighbor module changes the logical representation in response to lost neighbor reports, by creating pseudo new neighbor reports, and allowing the pseudo new neighbor reports to be processed following a certain amount of time.Type: GrantFiled: October 17, 1996Date of Patent: October 13, 1998Assignee: Cabletron Systems, Inc.Inventors: Vick Vaishnavi, Wallace Matthews, Patrick Kenny
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Patent number: 5793362Abstract: A network is monitored for reports indicative of a connection state among ports of a communications network. Certain ports are designated as being in a transition, and a transition table is created for each transition. The transition table includes locations that directly relate the connectivity of a first port with respect to a second port, as well as locations that relate the connectivity of other ports. The contents of the transition table are evaluated to determine the likely configuration of the communications network. State machines may be used to resolve conflicting data within the transition table, by providing a likely connection output based upon different entries within the transition table. A voting scheme is used to evaluate the outputs of the state machines and update the transition table when appropriate, and the updated transition table may also be evaluated.Type: GrantFiled: December 4, 1995Date of Patent: August 11, 1998Assignee: Cabletron Systems, Inc.Inventors: Wallace Matthews, Vick Vaishnavi
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Patent number: RE40027Abstract: A battery-powered apparatus for holding and energizing an electric transducer, includes a hand-held battery housing carrying the transducer mount, and first and second internal battery contacts. A first external battery charge terminal is on the transducer mount, and a second external battery charge terminal is on a part of the battery housing, such as its end cap. A double-throw switch has a common element electrically connected to an internal battery terminal contact, has a first switched contact leading to a first terminal of the electric transducer, and has opposite second switched contact electrically connected to an external battery charge terminal. If there are two electric transducers, they may be a part of a light source comprising a reflector, a first electric lamp having a filament at its focal point, and a second electric lamp extending into that reflector beside the first electric lamp.Type: GrantFiled: November 24, 1992Date of Patent: January 22, 2008Assignee: Surefire, LLCInventor: John Wallace Matthews
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Patent number: RE40125Abstract: An electric appliance includes a first electric power supply of first batteries arranged in a first pattern, and alternatively a different second electric power supply of second batteries arranged in a second pattern. An electrical ON-OFF switch has an ON-OFF position push-button switch actuator and a rotary switch actuator which releasably blocks that ON-OFF position push-button switch actuator in an OFF position. A tail end is equipped with a bistable OFF and ON switching function and with a momentary ON switching function unified into one electric toggle switch having a stable OFF position, a stable ON position, and a momentary ON position. A flashlight beam is cast with a first lamp and reflector assembly, an alternative second lamp and reflector assembly is substituted for that first lamp and reflector assembly and a second light beam of a different configuration is cast with that alternative second lamp and reflector assembly.Type: GrantFiled: February 3, 2003Date of Patent: March 4, 2008Assignee: Surefire, LLCInventors: John Wallace Matthews, Paul Youngcho Kim