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41. 发明专利

CA2799785C IMPROVED ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING (OFDM) COMMUNICATION SLOT STRUCTURES AND METHODS 未知
公开(公告)号：CA2799785C
公开(公告)日：2016-11-08
申请号：CA2799785
申请日：2011-05-16
申请人： RESEARCH IN MOTION LTD
发明人： KREUZER WERNER , BUCKLEY MICHAEL EOIN , XIN YAN , QU SHOUXING , SIMMONS SEAN BARTHOLOMEW
IPC分类号： H04L5/00 , H04L27/00
摘要： Improved orthogonal frequency-division multiplexing (OFDM) communication slot structures and method are described. One example method includes converting a first portion of a set of bits to a first orthogonal frequency-division multiplexing symbol to be transmitted during a first portion of a time-division multiple access time slot, and converting a second portion of the set of bits to a second orthogonal frequency-division multiplexing symbol to be transmitted during a second portion of the time-division multiple access time slot. Other embodiments are shown and described.

42. 发明专利

CA2758937C SENSOR-BASED WIRELESS COMMUNICATION SYSTEMS USING COMPRESSIVE SAMPLING 未知
公开(公告)号：CA2758937C
公开(公告)日：2016-08-23
申请号：CA2758937
申请日：2010-04-15
申请人： RESEARCH IN MOTION LTD
发明人： SEXTON THOMAS ALOYSIUS , SIMMONS SEAN BARTHOLOMEW , LUSINA PAUL JAMES , WOMACK JAMES EARL
IPC分类号： H04W24/02 , H03M1/12 , H03M7/30 , H04B15/00
摘要： Methods, devices and systems for sensor-based wireless communication systems using compressive sampling are provided. In one embodiment, the method for sampling signals comprises receiving, over a wireless channel, a user equipment transmission based on an S- sparse combination of a set of vectors; down converting and discretizing the received transmission to create a discretized signal; correlating the discretized signal with a set of sense waveforms to create a set of samples, wherein a total number of samples in the set is equal to a total number of sense waveforms in the set, wherein the set of sense waveforms does not match the set of vectors, and wherein the total number of sense waveforms in the set of sense waveforms is fewer than a total number of vectors in the set of vectors; and transmitting at least one sample of the set of samples to a remote central processor.

43. 发明专利

CA2712737C PORTABLE ELECTRONIC DEVICE INCLUDING TOUCH-SENSITIVE DISPLAY AND METHOD OF CONTROLLING SAME 未知
公开(公告)号：CA2712737C
公开(公告)日：2015-12-01
申请号：CA2712737
申请日：2010-08-03
申请人： RESEARCH IN MOTION LTD
发明人： SIMMONS SEAN BARTHOLOMEW , ALMALKI NAZIH
IPC分类号： G06F3/041 , G06F15/02 , H04W88/02
摘要： A method includes detecting first and second touches on the touch-sensitive display and determining a location of each of the first and second touches, determining, by a plurality of force sensors, reaction forces, for the first and second touches, and determining a respective applied force for each of the first and second touches based on the reaction forces and the locations of the first and second touches.

44. 发明专利

CA2692960C AUTOMATIC ACTIVATION OF SPEED MEASUREMENT IN MOBILE DEVICE BASED ON AVAILABLE MOTION 未知
公开(公告)号：CA2692960C
公开(公告)日：2015-11-24
申请号：CA2692960
申请日：2010-02-11
申请人： RESEARCH IN MOTION LTD
发明人： DIETZ DAVID BLAINE , SANGARY NAGULA THARMA , SIMMONS SEAN BARTHOLOMEW , LAZARIDIS MIHAL , DOLL JONATHAN CYRIL SKILTON , JARMUSZEWSKI PERRY
IPC分类号： H04W24/00 , H04W4/04 , H04W48/04
摘要： A system and method for speed measurement of a mobile device, using a speed sensor such as a satellite navigation system or an accelerometer, does not need such speed sensor to be continually activated. The system and method make use of a monitor for monitoring at least one motion indicium for indicating that the speed of the mobile device is above an initial threshold, including but not limited to: monitoring the Doppler shift measurements of a timing signal; monitoring the timing advance of a cellular radio signal; monitoring the number of base stations visible to the mobile device; monitoring the frequency of base station handover, however determined; monitoring the level crossings and/or the autocorrelation of an RSSI signal; and/or triangulation of the position of the mobile device. When the monitor determines that the mobile device may be travelling in excess of a threshold speed, a speed sensor is activated to confirm the indication. If the speed sensor determines that the mobile device is travelling at a speed below a second threshold, the speed sensor is deactivated.

45. 发明专利

CA2710517C SYSTEM AND METHOD MODULATION SCHEME CHANGES 未知
公开(公告)号：CA2710517C
公开(公告)日：2015-10-13
申请号：CA2710517
申请日：2008-12-22
申请人： RESEARCH IN MOTION LTD
发明人： CAI ZHIJUN , SIMMONS SEAN BARTHOLOMEW , WOMACK JAMES EARL , SUZUKI TAKASHI , YU YI
IPC分类号： H04L1/00
摘要： A system and method are disclosed that allow changes of a modulation and coding scheme (MCS) without overhead signaling. A priori, a network device and a user device know the manner in which the MCS will be changed. In one embodiment, the network device indicates the MCS to be used to decode a second portion of a message in a first portion of the message. In another embodiment, the user device blind detects the MCS used over a sub-set of MCSs.

46. 发明专利

CA2655487C SAFETY FOR MOBILE DEVICE USERS WHILE DRIVING 未知
公开(公告)号：CA2655487C
公开(公告)日：2014-06-03
申请号：CA2655487
申请日：2009-02-25
申请人： RESEARCH IN MOTION LTD
发明人： DIETZ DAVID BLAINE , SANGARY NAGULA THARMA , SIMMONS SEAN BARTHOLOMEW
IPC分类号： H04W88/02 , G06F3/01 , H04W64/00
摘要： A mobile device configured to have at least one function disabled when a speed of the mobile device exceeds a threshold. The mobile device includes an output component configured to provide a notification related to disabling the at least one function. The mobile device also includes a first input component configured to promote controlling whether to disable the at least one function.

47. 发明专利

CA2808107A1 SIGNATURE REPRESENTATION OF DATA HAVING HIGH DIMENSIONALITY 未知
公开(公告)号：CA2808107A1
公开(公告)日：2013-09-09
申请号：CA2808107
申请日：2013-02-27
申请人： RESEARCH IN MOTION LTD
发明人： OKA ANAND RAVINDRA , SNOW CHRISTOPHER HARRIS , SIMMONS SEAN BARTHOLOMEW
IPC分类号： G06F7/00 , G06F5/00 , G06F7/58 , H04W12/06
摘要： A system and method for generating an rn-dimensional signature vector in a computing device is provided. The signature vector may be generated from a plurality of key-value pairs, each comprising a unique identifier and an associated non-zero value. Each element of the m-dimensional signature vector is calculated based on a summation of a plurality of terms. Each of the terms is calculated from a respective key-value pair by generating a seed based on the key of the respective key-value pair and an element identifier associated with the vector element being calculated; generating a pseudo-random number from the generated seed; and multiplying the pseudo-random number by the value of the respective key-value pair, wherein m

48. 发明专利

CA2788747A1 MOBILE WIRELESS COMMUNICATIONS DEVICE INCLUDING ACOUSTIC COUPLING BASED IMPEDANCE ADJUSTMENT AND RELATED METHODS 未知
公开(公告)号：CA2788747A1
公开(公告)日：2013-03-09
申请号：CA2788747
申请日：2012-09-05
申请人： RESEARCH IN MOTION LTD
发明人： MANKARUSE GEORGE SOLIMAN , SHAKER GEORGE , SIMMONS SEAN BARTHOLOMEW , JARMUSZEWSKI PERRY
IPC分类号： H04W88/02 , H03H11/30
摘要： A mobile wireless communications device may include a portable housing, and an antenna carried by the portable housing. The mobile wireless communications device may further include wireless communications circuitry carried by the portable housing and an adjustable impedance matching network coupled between the wireless communications circuitry and the antenna. An audio input transducer and an audio output transducer may be carried by the portable housing. The mobile wireless communications device may further include a controller carried by the portable housing and configured to determine an acoustic coupling between the audio input transducer and the audio output transducer. The controller may further be configured to adjust the adjustable impedance matching network based upon the determined acoustic coupling.

49. 发明专利

CA2775662A1 METHOD OF DEVICE SELECTION USING SENSORY INPUT AND PORTABLE ELECTRONIC DEVICE CONFIGURED FOR SAME 未知
公开(公告)号：CA2775662A1
公开(公告)日：2012-11-06
申请号：CA2775662
申请日：2012-04-30
申请人： RESEARCH IN MOTION LTD
发明人： DODS JEFFREY ALTON HUGH , ALMALKI NAZIH , SIMMONS SEAN BARTHOLOMEW , BOUCHER ANTOINE GILLES JOSEPH
IPC分类号： G06F13/00 , G06F3/01 , H04B5/00 , H04W84/18 , H04W88/02
摘要： The present disclosure provides a method of device selection using sensory input and portable electronic device configured for same. In accordance with one example embodiment, there is provided a method for use in a portable electronic device for selecting a peripheral device for connection with the portable electronic device, comprising: measuring a magnetic field within the vicinity of the portable electronic device; determining a relative location of at least two available peripheral devices in accordance with magnetic fields uniquely associated with the at least two available peripheral devices; selecting a peripheral device from the at least two available peripheral devices in accordance with the measured magnetic field; and connecting the portable electronic device to the selected peripheral device using a wireless communications path.

50. 发明专利

CA2756366A1 DECODING TAIL-BITING CONVOLUTIONAL CODES 未知
公开(公告)号：CA2756366A1
公开(公告)日：2012-06-08
申请号：CA2756366
申请日：2011-10-26
申请人： RESEARCH IN MOTION LTD
发明人： WU HUAN , SIMMONS SEAN BARTHOLOMEW
IPC分类号： H03M13/23 , H04W80/00
摘要： A user equipment (UE) comprising at least one component configured to decode a tail-biting convolution code (TBCC) by calculating a plurality of paths that correspond to a plurality of encoder starting states and trace back at least one of the calculated paths per at least one iteration until a trace-back convergence check (TCC) condition fails, wherein the TCC condition fails if a starting state of a first traced back path among the calculated paths is not equal to a starting state of a subsequent traced back path. Also disclosed is an access device that includes at least one component configured to decode a tail-biting convolution code (TBCC) by calculating a plurality of paths that correspond to a plurality encoder starting states in at least one iteration and trace back at least one of the calculated paths per at least one iteration until a trace-back convergence check (TCC) condition fails, wherein the TCC condition fails if a starting state of a first traced back path among the calculated paths is not equal to a starting state of a subsequent traced back path.

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