Patents by Inventor Michael McCallum
Michael McCallum 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: 9143323Abstract: A cryptographic key is used to secure a communication link between a first device and a second device. Generating the cryptographic key is accomplished by a) generating a first cryptographic key, b) generating a second cryptographic key, c) applying a hash function to packets transmitted over the communication link to create a hash result, and d) applying the hash function to the first cryptographic key, the second cryptographic key and the hash result.Type: GrantFiled: April 4, 2005Date of Patent: September 22, 2015Assignee: BLACKBERRY LIMITEDInventors: Michael K. Brown, Herb Little, Michael S. Brown, Neil Adams, Michael McCallum, Dinah Davis
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Patent number: 8661272Abstract: Based on bounds of a period of reduced operation for a base device, a base device generates a power management message for transmission to a peripheral device. In the power management message, the base device inserts bounds of a period of reduced operation for the peripheral device. As a result, the periods of reduced operation conserve battery power in both devices and the two devices may reestablish a communications channel upon reaching the end of the period of reduced operation and resuming normal operations.Type: GrantFiled: December 14, 2011Date of Patent: February 25, 2014Assignee: Blackberry LimitedInventors: Neil Patrick Adams, Herbert A. Little, Michael McCallum
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Publication number: 20120091198Abstract: A computerized device has an open communication session with a smart card via a smart card reader. The smart card reader and the computerized device cooperate to enable another computerized device to communicate with the smart card over the open communication session. Communication between the other computerized device and the smart card is routed via the computerized device that has the open communication session.Type: ApplicationFiled: December 21, 2011Publication date: April 19, 2012Applicant: Research In Motion LimitedInventors: Michael McCallum, Neil Adams
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Publication number: 20120084587Abstract: Based on bounds of a period of reduced operation for a base device, a base device generates a power management message for transmission to a peripheral device. In the power management message, the base device inserts bounds of a period of reduced operation for the peripheral device. As a result, the periods of reduced operation conserve battery power in both devices and the two devices may reestablish a communications channel upon reaching the end of the period of reduced operation and resuming normal operations.Type: ApplicationFiled: December 14, 2011Publication date: April 5, 2012Applicant: RESEARCH IN MOTION LIMITEDInventors: Neil Patrick Adams, Herbert A. Little, Michael McCallum
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Patent number: 8090963Abstract: Based on bounds of a period of reduced operation for a base device, a base device generates a power management message for transmission to a peripheral device. In the power management message, the base device inserts bounds of a period of reduced operation for the peripheral device. As a result, the periods of reduced operation conserve battery power in both devices and the two devices may reestablish a communications channel upon reaching the end of the period of reduced operation and resuming normal operations.Type: GrantFiled: February 19, 2008Date of Patent: January 3, 2012Assignee: Research In Motion LimitedInventors: Neil Patrick Adams, Herbert A. Little, Michael McCallum
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Publication number: 20100252629Abstract: A computerized device has an open communication session with a smart card via a smart card reader. The smart card reader and the computerized device cooperate to enable another computerized device to communicate with the smart card over the open communication session. Communication between the other computerized device and the smart card is routed via the computerized device that has the open communication session.Type: ApplicationFiled: June 14, 2010Publication date: October 7, 2010Applicant: RESEARCH IN MOTION LIMITEDInventors: Michael McCallum, Neil Adams
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Patent number: 7792290Abstract: A device coupled to a smart card reader may request random data from a smart card inserted into the smart card reader, and the smart card reader may incorporate the random data into its randomness pool. A device having a source of random data may have a driver installed thereon for the smart card reader. The device may generate a random session key to encrypt traffic between the device and the smart card reader. The device may send an encrypted version of the random session key to the smart card reader. The smart card reader may decrypt the encrypted version and incorporate the random session key into its randomness pool. A smart card reader may incorporate random data received from a smart card inserted therein into its randomness pool.Type: GrantFiled: July 3, 2009Date of Patent: September 7, 2010Assignee: Research In Motion LimitedInventors: Neil Adams, Michael S. Brown, Herb Little, Michael McCallum, Michael K. Brown
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Patent number: 7735742Abstract: A computerized device has an open communication session with a smart card via a smart card reader. The smart card reader and the computerized device cooperate to enable another computerized device to communicate with the smart card over the open communication session. Communication between the other computerized device and the smart card is routed via the computerized device that has the open communication session.Type: GrantFiled: July 13, 2006Date of Patent: June 15, 2010Assignee: Research In Motion LimitedInventors: Michael McCallum, Neil Adams
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Publication number: 20090266883Abstract: A device coupled to a smart card reader may request random data from a smart card inserted into the smart card reader, and the smart card reader may incorporate the random data into its randomness pool. A device having a source of random data may have a driver installed thereon for the smart card reader. The device may generate a random session key to encrypt traffic between the device and the smart card reader. The device may send an encrypted version of the random session key to the smart card reader. The smart card reader may decrypt the encrypted version and incorporate the random session key into its randomness pool. A smart card reader may incorporate random data received from a smart card inserted therein into its randomness pool.Type: ApplicationFiled: July 3, 2009Publication date: October 29, 2009Applicant: RESEARCH IN MOTION LIMITEDInventors: Neil ADAMS, Michael S. BROWN, Herb LITTLE, Michael McCALLUM, Michael K. BROWN
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Publication number: 20090210729Abstract: Based on bounds of a period of reduced operation for a base device, a base device generates a power management message for transmission to a peripheral device. In the power management message, the base device inserts bounds of a period of reduced operation for the peripheral device. As a result, the periods of reduced operation conserve battery power in both devices and the two devices may reestablish a communications channel upon reaching the end of the period of reduced operation and resuming normal operations.Type: ApplicationFiled: February 19, 2008Publication date: August 20, 2009Inventors: Neil Patrick Adams, Herbert A. Little, Michael McCallum
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Patent number: 7558387Abstract: A device coupled to a smart card reader may request random data from a smart card inserted into the smart card reader, and the smart card reader may incorporate the random data into its randomness pool. A device having a source of random data may have a driver installed thereon for another device and the driver may extract random data from the source and transmit it securely over a wireless communication link to the other device. The other device, which may be a smart card reader, may incorporate the extracted random data into its randomness pool. A smart card reader may incorporate traffic received from a smart card inserted therein into its randomness pool.Type: GrantFiled: April 15, 2005Date of Patent: July 7, 2009Assignee: Research In Motion LimitedInventors: Neil Adams, Michael S. Brown, Herb Little, Michael McCallum, Michael K. Brown
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Publication number: 20080011848Abstract: A computerized device has an open communication session with a smart card via a smart card reader. The smart card reader and the computerized device cooperate to enable another computerized device to communicate with the smart card over the open communication session. Communication between the other computerized device and the smart card is routed via the computerized device that has the open communication session.Type: ApplicationFiled: July 13, 2006Publication date: January 17, 2008Applicant: RESEARCH IN MOTION LIMITEDInventors: Michael McCallum, Neil Adams
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Publication number: 20070006279Abstract: An active new password entry dialog provides a compact visual indication of adherence to password policies. A visual indication of progress towards meeting all applicable password policies is included in the display and updated as new password characters are being entered. A visual hint associated with at least one applicable password policy that has not yet been satisfied is also included in the display. An ability to obtain more detailed comprehensive password policy information is also permitted upon user command (e.g., including an indication whether each password policy has yet been met or unmet). Preferably the displayed hint and associated applicable password policy not yet satisfied is randomly changed during entry of a new password (e.g., upon the entry of each new password character).Type: ApplicationFiled: July 1, 2005Publication date: January 4, 2007Applicant: Research in Motion LimitedInventors: Michael Brown, Michael Brown, Neil Adams, Herbert Little, Michael McCallum, Dinah Davis
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Publication number: 20060288207Abstract: A communication system is provided with program logic for enforcing an IT Policy specifying suitable encryption encoding levels for corresponding security classification levels (and/or encryption strengths).Type: ApplicationFiled: June 17, 2005Publication date: December 21, 2006Applicant: Research In Motion LimitedInventors: Michael Brown, Herbert Little, Michael Brown, Michael McCallum, Scott Totzke, Neil Adams
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Publication number: 20060233374Abstract: A device coupled to a smart card reader may request random data from a smart card inserted into the smart card reader, and the smart card reader may incorporate the random data into its randomness pool. A device having a source of random data may have a driver installed thereon for another device and the driver may extract random data from the source and transmit it securely over a wireless communication link to the other device. The other device, which may be a smart card reader, may incorporate the extracted random data into its randomness pool. A smart card reader may incorporate traffic received from a smart card inserted therein into its randomness pool.Type: ApplicationFiled: April 15, 2005Publication date: October 19, 2006Inventors: Neil Adams, Michael Brown, Herb Little, Michael McCallum, Michael Brown
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Publication number: 20060224892Abstract: A cryptographic key is used to secure a communication link between a first device and a second device. Generating the cryptographic key is accomplished by a) generating a first cryptographic key, b) generating a second cryptographic key, c) applying a hash function to packets transmitted over the communication link to create a hash result, and d) applying the hash function to the first cryptographic key, the second cryptographic key and the hash result.Type: ApplicationFiled: April 4, 2005Publication date: October 5, 2006Inventors: Michael Brown, Herb Little, Michael Brown, Neil Adams, Michael McCallum, Dinah Davis
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Patent number: 4518057Abstract: A tricycle powered wheelchair carrier has a platform supported on the bight of a U-shaped axle between a pair of rear wheels supported at the ends of the axle legs. The platform is formed with a downwardly sloping ramp portion at the end extending beyond the rear wheels. A front wheel is connected to handlebars at the front of a platform by a linkage pivoted at the top. A front actuator is connected between this linkage and the platform. A rear actuator is connected between the U-shaped axle and the platform. A transmission couples an internal combustion engine to a rear wheel and includes a reverse gear. A locking bar has rear and side mutually perpendicular arms. The side arm is pivotal about a horizontal axis in bearings on the side of the carrier to allow the side arm to move from a vertical position to a horizontal position against the rear wheels of a wheelchair on the platform with the end of the rear arm having a stud seated in a socket attached to the other side of the carrier.Type: GrantFiled: June 8, 1983Date of Patent: May 21, 1985Inventor: Michael McCallum