Patents by Inventor David Mak-Fan

David Mak-Fan 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).

  • Patent number: 8913670
    Abstract: A system and method are provided that can be used for applying a deblocking filter to a video according to processor usage, in particular on a mobile device. To determine which of a plurality of deblocking filters to use, the system determines an environment indicator indicative of current processor usage, compares the environment indicator to a primary threshold, wherein the primary threshold is indicative of a maximum acceptable processor usage. If the primary threshold is met, the system foregoes any deblocking filtering. If however the primary threshold is not met, the environment indicator is compared to one or more secondary thresholds and a respective one of the plurality of deblocking filters is applied to the video according to which one of the secondary thresholds is met. Each of the plurality of deblocking filters has a different complexity and thus can be chosen to suit the current system environment.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: December 16, 2014
    Assignee: BlackBerry Limited
    Inventors: David Mak-Fan, Aaron Bradley Small
  • Patent number: 8885733
    Abstract: A processor and method are provided for decoding a multimedia file having video and audio data streams that are configured to be played in synchronization. Frames of the video stream are decoded and played with the audio and, to compensate for saturation of the processor usage, two procedures are performed. The first procedure operates at a first periodic interval and slows down the frame rate to reduce processor usage if needed. The second procedure first attempts to speed up the video to catch up to the audio if they are out of sync and if this cannot be done in the next time interval, the decoding of a select number of frames is skipped such that the video and audio data streams are resynchronized.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: November 11, 2014
    Assignee: BlackBerry Limited
    Inventors: David Mak-Fan, Aaron Bradley Small, Thomas Charles Nagy
  • Patent number: 8878784
    Abstract: Method and arrangement for affecting diagonal movement of a cursor 171 on a display screen 322 of a handheld communication device 300. The method includes sensing movement at an auxiliary user input 328 of the handheld communication device 300 indicative of a user's desire to affect diagonal movement of the cursor 171 on the display screen 322 of the handheld communication device 300. X-direction signals and Y-direction signals are produced based on the sensed movement at the auxiliary user input 328. During that time while necessary signals are being collected and processed, the cursor 171 is held steady on the display screen 322 until a predetermined criterion is met for discriminating whether the user has indicated x-direction cursor movement, y-direction cursor movement or diagonal cursor movement.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: November 4, 2014
    Assignee: BlackBerry Limited
    Inventors: Matthew Lee, Andrew Bocking, David Mak-Fan, Steven Fyke, Matthew Bells
  • Patent number: 8812064
    Abstract: The invention is directed at a headset for a mobile communication device having a multi-button control and is implemented with a standard headset jack. The multi-button control is decoded by a microprocessor after which an encoded signal is then transmitted from the processor to the handset. In this manner, by using the standard jack, no additional hardware is required on the handset.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 19, 2014
    Assignee: BlackBerry Limited
    Inventors: Robert J. Lowles, Edward Hui, David Mak-Fan
  • Patent number: 8787865
    Abstract: The disclosure provides a circuit and method for activating an electronic device from a low power state. The activation circuit comprises: a first accelerometer in the device; a second accelerometer which is activated upon receiving a movement signal from the first accelerometer; an input device; and a circuit to provide power to the input device when a series of connected movements signals from at least one of the first and the second accelerometers match a predetermined movement gesture.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: July 22, 2014
    Assignee: BlackBerry Limited
    Inventors: Kevin Orr, Steven Fyke, David Mak-Fan
  • Patent number: 8681629
    Abstract: The disclosure relates to a system and method for adjusting a characteristic of a data transmission in order to maintain a rate of transmission. For the method, it comprises: monitoring for initiation of the data transmission to the device; identifying characteristics of the device relating to the data transmission; automatically adjusting the transmission rate according to a preset transmission rate progression established for the communication network; and adjusting characteristics of the data transmission to allow the characteristics of data transmission to conform to the characteristics of the device while maintaining the transmission rate for the device.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: March 25, 2014
    Assignee: BlackBerry Limited
    Inventors: Tom Nagy, David Mak-Fan
  • Patent number: 8654078
    Abstract: Method and arrangement that provides a power-saving mode for a handheld electronic device having a reduced alphabetic keyboard. The power-saving mode is enabled through disabling a sensor that detects motion of a ball of the trackball navigation tool and disabling the display screen of the handheld electronic device. The power-saving mode may be exited before disablement of the sensor when the display screen is disabled first.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: February 18, 2014
    Assignee: BlackBerry Limited
    Inventors: Matthew Lee, Andrew Bocking, David Mak-Fan, Steven Fyke
  • Publication number: 20140031094
    Abstract: The invention is directed at a headset for a mobile communication device having a multi-button control and is implemented with a standard headset jack. The multi-button control is decoded by a microprocessor after which an encoded signal is then transmitted from the processor to the handset. In this manner, by using the standard jack, no additional hardware is required on the handset.
    Type: Application
    Filed: September 30, 2013
    Publication date: January 30, 2014
    Applicant: BlackBerry Limited
    Inventors: Robert J. Lowles, Edward Hui, David Mak-Fan
  • Patent number: 8548538
    Abstract: The invention is directed at a headset for a mobile communication device having a multi-button control and is implemented with a standard headset jack. The multi-button control is decoded by a microprocessor after which an encoded signal is then transmitted from the processor to the handset. In this manner, by using the standard jack, no additional hardware is required on the handset.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: October 1, 2013
    Assignee: Research In Motion Limited
    Inventors: Robert J. Lowles, Edward Hui, David Mak-Fan
  • Patent number: 8537108
    Abstract: System and method that provides tactical feedback through a speaker of a handheld electronic device having a full alphabetic keyboard upon activation of a navigation tool. The audible feedback produced by the speaker is capable of being modified based on upon the location, speed, and other characteristics of the movement of a cursor on the display of a handheld electronic device. The sound produced by the speaker can originate from an audio file stored or otherwise available on the handheld electronic device.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: September 17, 2013
    Assignee: Research In Motion Limited
    Inventors: Matthew Richard Lee, Andrew D. Bocking, David Mak-Fan, Steven Henry Fyke, Matthew Bells
  • Patent number: 8384677
    Abstract: A method of determining input at a touch-sensitive input surface of a portable electronic device includes detecting a touch event at the touch-sensitive input surface, sampling touch attributes during the touch event, determining an actual touch location and determining at least one shift in touch location based on the touch attributes sampled during the touch event, and determining an input based on the actual touch location and the direction of shift of the touch location.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: February 26, 2013
    Assignee: Research In Motion Limited
    Inventors: David Mak-Fan, Kuo-Feng Tong, Matthew Bells, Douglas Rider, Michael Langlois, Jong-Suk Lee, Jason T. Griffin, Colin Ho
  • Publication number: 20120328268
    Abstract: A processor and method are provided for decoding a multimedia file having video and audio data streams that are configured to be played in synchronization. Frames of the video stream are decoded and played with the audio and, to compensate for saturation of the processor usage, two procedures are performed. The first procedure operates at a first periodic interval and slows down the frame rate to reduce processor usage if needed. The second procedure first attempts to speed up the video to catch up to the audio if they are out of sync and if this cannot be done in the next time interval, the decoding of a select number of frames is skipped such that the video and audio data streams are resynchronized.
    Type: Application
    Filed: September 6, 2012
    Publication date: December 27, 2012
    Applicant: Research In Motion Limited
    Inventors: David Mak-Fan, Aaron Bradley Small, Thomas Charles Nagy
  • Publication number: 20120315959
    Abstract: Various embodiments are described for a mobile communication device having a main processor for controlling the operation of the mobile communication device; a device memory coupled to the main processor for storing a plurality of battery information profiles; and a smart battery coupled to the main processor for providing supply power. The smart battery includes a battery processor for controlling the operation of the smart battery and communicating with the main processor; and a battery memory coupled to the battery processor for storing a Battery ID indicating the model of the smart battery. The main processor is configured to communicate with the battery processor to obtain the Battery ID and select one the battery information profiles based on the Battery ID.
    Type: Application
    Filed: August 23, 2012
    Publication date: December 13, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Christopher Book, David Mak-Fan, Martin Guthrie, Jonathan Brubacher
  • Patent number: 8279946
    Abstract: A processor and method are provided for decoding a multimedia file having video and audio data streams that are configured to be played in synchronization. Frames of the video stream are decoded and played with the audio and, to compensate for saturation of the processor usage, two procedures are performed. The first procedure operates at a first periodic interval and slows down the frame rate to reduce processor usage if needed. The second procedure first attempts to speed up the video to catch up to the audio if they are out of sync and if this cannot be done in the next time interval, the decoding of a select number of frames is skipped such that the video and audio data streams are resynchronized.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: October 2, 2012
    Assignee: Research In Motion Limited
    Inventors: David Mak-Fan, Aaron B. Small, Thomas C. Nagy
  • Patent number: 8244200
    Abstract: The disclosure provides a system, circuit and method for activating an electronic device from a low power state. The circuit comprises: a microprocessor; a first accelerometer; a second accelerometer which is activated upon receiving a movement signal from the first accelerometer, indicating a movement of the electronic device; a threshold circuit connected to an output of the second accelerometer to allow only signals generated by the second accelerometer that exceed a threshold to pass; an input device; and a monitoring circuit connected to the input device and an output of the threshold circuit. The monitoring circuit comprises a latch circuit utilizing signals from the threshold circuit and a reset signal from the microprocessor to generate a trigger signal to activate the input device. The monitoring circuit selectively generates an activation signal to activate the electronic device to a higher power state utilizing a notable signal received from the input device.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: August 14, 2012
    Assignee: Research In Motion Limited
    Inventors: Kevin Orr, Steven Fyke, David Mak-Fan
  • Patent number: 8232965
    Abstract: Method and arrangement for adjusting sensitivity in the horizontal and/or vertical directions for the motion of a cursor on the display of a handheld electronic device incorporates a navigation tool as a user input device. The sensitivity can be user-defined, program-defined or a combination of the two. The sensitivity adjustment allows for special properties associated with dimensions of the display and/or with the navigation tool.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: July 31, 2012
    Assignee: Research In Motion Limited
    Inventors: Matthew Bells, David Mak-Fan
  • Patent number: 8209063
    Abstract: System and method that provides audible feedback through a speaker of a handheld electronic device upon actuation of a navigation tool. The audible feedback produced by the speaker is capable of being modified based upon the location, speed, and other characteristics of the movement of a cursor on the display of a handheld electronic device. The sound produced by the speaker can originate from an audio file stored or otherwise available on the handheld electronic device.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: June 26, 2012
    Assignee: Research In Motion Limited
    Inventors: Matthew Lee, Andrew Bocking, David Mak-Fan, Steven Fyke, Matthew Bells
  • Patent number: 8194028
    Abstract: The disclosure relates to a system and method for determining pixel intensity values (luma values) for an image being displayed on a display of an electronic device, then adjusting the pixel intensity and the backlight level for the image that is output to a liquid crystal display (LCD). The system comprises: a display for displaying an image to be displayed on the device; an image adjustment module to identify the pixel intensity values of the image, to determine new pixel intensity values for the image based in part on the original pixel intensity values, to provide the (adjusted) image at the new pixel intensity values to the display and to determine a backlight level for the image at the new pixel intensity values. The system further comprises a backlight system to provide a backlight for the adjusted image at the adjusted backlight level.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: June 5, 2012
    Assignee: Research In Motion Limited
    Inventors: Bergen Albert Fletcher, James Robinson, Conrad Aleksander Kreek, David Mak-Fan, Andrew Dewi Williams, Michael Purdy
  • Publication number: 20120021807
    Abstract: Various embodiments are described for a mobile communication device having a main processor for controlling the operation of the mobile communication device; a device memory coupled to the main processor for storing a plurality of battery information profiles; and a smart battery coupled to the main processor for providing supply power. The smart battery includes a battery processor for controlling the operation of the smart battery and communicating with the main processor; and a battery memory coupled to the battery processor for storing a Battery ID indicating the model of the smart battery. The main processor is configured to communicate with the battery processor to obtain the Battery ID and select one the battery information profiles based on the Battery ID.
    Type: Application
    Filed: September 28, 2011
    Publication date: January 26, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Christopher Book, David Mak-Fan, Martin Guthrie, Jonathan Brubacher
  • Publication number: 20110321112
    Abstract: The disclosure relates to a system and method for adjusting a characteristic of a data transmission in order to maintain a rate of transmission. For the method, it comprises: monitoring for initiation of the data transmission to the device; identifying characteristics of the device relating to the data transmission; automatically adjusting the transmission rate according to a preset transmission rate progression established for the communication network; and adjusting characteristics of the data transmission to allow the characteristics of data transmission to conform to the characteristics of the device while maintaining the transmission rate for the device.
    Type: Application
    Filed: September 2, 2011
    Publication date: December 29, 2011
    Inventors: Tom Nagy, David Mak-Fan