Frame, Field Or Scan Rate Conversion Patents (Class 345/3.2)
  • Patent number: 10388219
    Abstract: Provided is an organic light emitting display (OLED) device that can include a timing controller configured to generate control signals to be applied to a plurality of pixels, each pixel including a pixel driving circuit. An adjusted initialization voltage is input to a circuit driving circuit of the OLED device during an initialization period. Thus, a delay of a current flowing in an organic light emitting diode can be improved such that a flicker phenomenon can be suppressed or minimized.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: August 20, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JunHo Lee, SeungChan Choi, SungBin Ryu, KiTae Kim, Siu Yoon
  • Patent number: 10373582
    Abstract: Display control device 100 in the present invention includes: memory 101 that stores an image signal input from a signal source; controller 102 that determines the number of output frames based on an input vertical synchronizing signal input from the signal source, the output frames being frames to be displayed on a display in one cycle of the input vertical synchronizing signal, and that determines a dot number in an output horizontal period such that a gap between an output frame line number of a predetermined output frame and the output frame line number of a different output frame in a period corresponding to one cycle of the input vertical synchronizing signal is smaller than a predetermined threshold, the output horizontal period being one cycle of an output horizontal synchronizing signal, the output frame line number being the number of output horizontal periods corresponding to the output frame; and output section 103 that reads the image signal from storage 101 depending on the dot number determined
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: August 6, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Tatsuo Kimura
  • Patent number: 9564455
    Abstract: A display panel is provided. The display panel includes has an active area and a border area surrounding the active area. The display panel includes a plurality of pixels, a plurality of multiplexer portion, a gate driver portion and a source routing portion. The pixels are located in the active area. The multiplexer portion is located in the border area. The gate driver portion is located in the border area. The source routing portion is located in the border area. In part of the border area, at least part of the multiplexer portion, at least part of the gate driver portion and at least part of the source routing portion are located and sequentially arranged from an internal edge of the border area to an external edge of the border area.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: February 7, 2017
    Assignee: INNOLUX CORPORATION
    Inventor: Gerben Johan Hekstra
  • Patent number: 9412330
    Abstract: Embodiments of the invention are generally directed to conversion of multimedia data streams for use by connected devices. An embodiment of a method for processing data includes receiving a data stream in a first multimedia data format at a first device, and inserting a replacement video portion into the received data stream to generate a modified multimedia data stream in a second multimedia data format. The modified data stream is provided to a second device coupled to the first device.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: August 9, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Stephen J. Keating, Alexander Peysakhovich, Hung Yu Hsieh, David Noel Babbage, II, Jiong Huang
  • Patent number: 9324293
    Abstract: Embodiments of the invention are generally directed to conversion of multimedia data streams for use by connected devices. An embodiment of a method for processing data includes receiving a data stream in a first multimedia data format at a first device, and inserting a replacement video portion into the received data stream to generate a modified multimedia data stream in a second multimedia data format. The modified data stream is provided to a second device coupled to the first device.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: April 26, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Stephen J. Keating, Alexander Peysakhovich, Hung Yu Hsieh, David Noel Babbage, II, Jiong Huang
  • Patent number: 9001106
    Abstract: A display apparatus includes a display panel, a gate driver, and a data driver. The display panel includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the gate lines and the data lines to display an image. The gate driver is configured to apply a gate signal to the gate lines and the data driver is configured to apply a data signal to the data lines. At least one intermediate voltage having a voltage level between a first voltage and a second voltage and a data voltage corresponding to a specific gray scale are sequentially applied to at least one pixel of the pixels as the data signal during a frame period.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Uk Chul Choi, Cheol Woo Park, Hyun Sik Hwang, Yongjun Jang
  • Patent number: 8970535
    Abstract: Electronic apparatus (100) includes a display device (1), a detecting device (20) which detects an input, a state change detecting section (31), and a control section. The control section controls the detecting device (20) so that the detecting device (20) carries out the detection more times during a non-scanning period in a case where a state change causing an improvement in detection accuracy is detected and so that the detecting device (20) carries out the detection fewer times during the non-scanning period in a case where the state change causing a deterioration in detection accuracy is detected. With the configuration, it is possible to improve detection accuracy of the detecting device while reducing electric power consumption.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: March 3, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohji Saitoh, Akizumi Fujioka, Masami Ozaki, Toshihiro Yanagi
  • Patent number: 8885333
    Abstract: A mobile terminal includes a terminal body, a case defining an appearance of the terminal body, the case formed of a non-metal, and a metal frame formed of a metal, at least part of the metal frame extending through the case from inside to outside of the terminal body so as to be externally exposed, wherein the case and the metal frame are integrally formed with each other. Accordingly, a specific pattern can be realized at the appearance of the terminal body to arouse distinctive attraction to the appearance, thereby providing a terminal with such attractive appearance.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: November 11, 2014
    Assignee: LG Electronics Inc.
    Inventors: Seunggeun Lim, Kyuho Lee, Dongguk Kang, Zhimin Choo
  • Patent number: 8878878
    Abstract: Provided are a display apparatus and a control method thereof which supports image data at differing frame rates, such as 60 Hz and 120 Hz, input from an image supply source. The display apparatus includes a first scaler which processes input image data; a second scaler which processes input image data; a display unit which displays thereon the image data processed by the first and second scalers; and a controller which selectively controls based on a frame rate of the image data to process the image data by the first scaler only, or to divide and process the image data by both the first and second scalers.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young-kyan Yun
  • Patent number: 8854280
    Abstract: An image processing apparatus acquires a time interval which is set in a display apparatus and at which the display screen is updated, determines a profile used for a color correction process based on the acquired time interval, and performs the color correction process using the determined profile to an input video signal.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: October 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takenori Ohno
  • Patent number: 8797457
    Abstract: An apparatus configured to match an input frame rate of a video stream with an output frame rate of an output stream, the apparatus comprising, at least one memory buffer, an output frame generator, and a threshold measurement unit, the threshold measurement unit configured to generate a control feedback, wherein the box is configured to analyze the control feedback to monitor a state of the at least one memory buffer, the threshold measurement unit further configured analyze the control feedback to regulate between two or more different settings, wherein the two or more different settings include slowing down or speeding up the output frame, wherein the two or more different settings further include slowing down or speeding up of the line rate of the output stream.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: August 5, 2014
    Assignee: Entropic Communications, Inc.
    Inventor: Andrew Stevens
  • Patent number: 8754828
    Abstract: In an embodiment, a display apparatus includes multiple physical interface circuits (PHYs) couple to respective displays. In a mirror mode, the PHYs may operate as masters. A primary master PHY may control a synchronization interface to one or more secondary master PHYs. The synchronization interface may include a start of frame signal that the primary master PHY may generate to indicate the beginning of a new frame. The secondary master PHYs may be configured to generate internal start of frame signals while independently processing the same display data as the primary master. If the internally-generated start of frame and the received start of frame occur within a window of tolerance of each other, then the secondary masters may continue to process the display data stream independently. A secondary master that detects the start of frames occur outside of the window of tolerance may resynchronize.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: June 17, 2014
    Assignee: Apple Inc.
    Inventors: Wolfgang Roethig, Michael Frank
  • Patent number: 8730280
    Abstract: A display device includes a color converter, a timing controller, and a display panel. The color converter converts R, G, and B data into R?, G?, B?, and W? data. The R?, G?, B?, and W? data includes first component data and second component data. The timing controller provides the first component data to a data driver during a first driving time and provides the second component data to the data driver during a second driving time. The data driver provides gray level display voltages corresponding to the first component data and the second component data to a data line, and the display panel displays the R?, G?, B?, and W? data in response to the gray level display voltage.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: May 20, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si-Duk Sung, Baek-Woon Lee
  • Publication number: 20140125556
    Abstract: In an embodiment, a display apparatus includes multiple physical interface circuits (PHYs) couple to respective displays. In a mirror mode, the PHYs may operate as masters. A primary master PHY may control a synchronization interface to one or more secondary master PHYs. The synchronization interface may include a start of frame signal that the primary master PHY may generate to indicate the beginning of a new frame. The secondary master PHYs may be configured to generate internal start of frame signals while independently processing the same display data as the primary master. If the internally-generated start of frame and the received start of frame occur within a window of tolerance of each other, then the secondary masters may continue to process the display data stream independently. A secondary master that detects the start of frames occur outside of the window of tolerance may resynchronize.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: Apple Inc.
    Inventors: Wolfgang Roethig, Michael Frank
  • Publication number: 20140118224
    Abstract: An electronic device includes complementary dual displays, which enable sending a video signal to a first display, wherein the first display is a refresh-based, high frame rate display; displaying the video signal on the first display; and printing a frame of the video signal to a second display, wherein the second display is a bistable, low frame rate display, the printing including, loading a portion of a current frame of the video signal into a frame buffer, and displaying the current frame of the video signal to a second display, such that a bistable static image is displayed on the second display. The device may be switched among read, extend, and navigate modes, which enable different transitions of content between the two screens by a common application, such as a browser application.
    Type: Application
    Filed: January 8, 2014
    Publication date: May 1, 2014
    Applicant: QUICKBIZ HOLDINGS LIMITED
    Inventors: Albert Teng, Jack Yuan, Richard Li
  • Patent number: 8711057
    Abstract: A color LED display device without color separation comprises a substrate, a plurality of display units, a power supply unit, and a control unit. Each display unit comprises a driving chip, at least one red-light LED chip, at least one green-light LED chip, at least one blue-light LED chip, and a micro optical device assembly. The micro optical device assembly is disposed above the red-light, green-light and blue-light LED chips. When the control unit controls the display unit to emit light, the red-light, green-light and blue-light LED chips emit red, green and blue lights respectively and simultaneously. The red, green and blue lights pass through the micro optical device assembly, such that the light paths of the red, green and blue lights are changed and the three lights are combined on a two-dimensional plane. Therefore, the color separation phenomenon of the conventional color LED display device is solved.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: April 29, 2014
    Assignee: National Tsing Hua University
    Inventors: Cheng-Huan Chen, Shu-Hui Chu, Kuang-Lung Huang
  • Patent number: 8593489
    Abstract: Provided are a display apparatus and a control method thereof which supports image data at differing frame rates, such as 60 Hz and 120 Hz, input from an image supply source. The display apparatus includes a first scaler which processes input image data; a second scaler which processes input image data; a display unit which displays thereon the image data processed by the first and second scalers; and a controller which selectively controls based on a frame rate of the image data to process the image data by the first scaler only, or to divide and process the image data by both the first and second scalers.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: November 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young-kyan Yun
  • Patent number: 8537073
    Abstract: Control of multiple display screens associated with a computer, wherein the auxiliary screen display content that depends on conditions of the computer. During some times the auxiliary screen displays content associated with the presently executing program, and during other times the auxiliary screen displays history information. The rules can be automatically changed or manually changed.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: September 17, 2013
    Inventor: Scott C. Harris
  • Patent number: 8531350
    Abstract: When a first display device displays image data, a display control apparatus reserves a memory space having the first horizontal pixel number in the storage unit, and sets the frequency of a clock signal supplied to the display control unit to a first frequency. When a second display device displays image data, a display control apparatus reserves a space of the second horizontal pixel number, which is higher than the first horizontal pixel number, and sets the frequency of a clock signal supplied to the display control unit to a second frequency which is higher than the first frequency.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Zenya Kawaguchi
  • Patent number: 8471860
    Abstract: Graphics display adapters for driving multiple display monitors have become very popular. Graphics display adapters that drive multiple monitors can be used to provide terminal services to multiple independent terminals or be used to provide multiple displays to a single user. Generating video signals for multiple display systems puts a heavy burden on the video memory system since multiple different video signal generators may read from associated frame buffers in a shared video memory system. In one disclosed embodiment, a plurality of video memory read triggers are provided wherein at least two of which are staggered to reduce the load on the video memory system. In response to each read trigger, display data is read from a frame buffer to an associated video signal generation circuit. Each video signal generation circuit then provides a display signal to an associated display screen in a multi-screen environment.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: June 25, 2013
    Assignee: nComputing Inc.
    Inventor: Subir Ghosh
  • Patent number: 8421732
    Abstract: A system for displaying images includes a display device. The display device includes a timing control circuit, a display matrix, a horizontal driving circuit and a horizontal signal processing circuit. The timing control circuit generates a plurality of timing signals. The display matrix includes a plurality of display elements arranged in a matrix, wherein the display elements are vertically divided into N banks to be updated sequentially. The horizontal driving circuit is coupled to the timing control circuit for generating a plurality of switch signals according to the timing signals and sequentially turning on the banks. The horizontal signal processing circuit is coupled to the timing control circuit, the horizontal driving circuit and the display matrix for determining a turning-on period for each bank according to the timing signals and the switch signals.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: April 16, 2013
    Assignee: Chimei Innolux Corporation
    Inventor: Yu-Hsiung Feng
  • Patent number: 8368616
    Abstract: Control of multiple display screens associated with a computer, wherein the auxiliary screen display content that depends on conditions of the computer. During some times the auxiliary screen displays content associated with the presently executing program, and during other times the auxiliary screen displays history information. The rules can be automatically changed or manually changed.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: February 5, 2013
    Inventor: Scott C. Harris
  • Patent number: 8314752
    Abstract: In a method for driving a display device, an address counter is used for generating a plurality of address variables corresponding to data of a scan line. Next, an address mapping circuit generates a first target address by data-mapping an address variable, and generates a second target address by data mapping data stored in an address look-up table memory. Subsequently, a row buffer memory accesses data corresponding to a first scan line based on the first target address, and accesses data corresponding to a second scan line based on the second target address.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: November 20, 2012
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Hsiao-Ming Huang, Chun-Lung Wang, Yi-Lin Yeh
  • Patent number: 8279139
    Abstract: When a first display device displays image data, a display control apparatus reserves a memory space having the first horizontal pixel number in the storage unit, and sets the frequency of a clock signal supplied to the display control unit to a first frequency. When a second display device displays image data, a display control apparatus reserves a space of the second horizontal pixel number, which is higher than the first horizontal pixel number, and sets the frequency of a clock signal supplied to the display control unit to a second frequency which is higher than the first frequency.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: October 2, 2012
    Assignee: Canon Kabuashiki Kaisha
    Inventor: Zenya Kawaguchi
  • Patent number: 8262235
    Abstract: A laser projector comprises an oscillation device for displacing at least one of a plurality of optical elements, which constitute the projection optical system of the laser projector, periodically along the direction of the optical axis of laser light. The laser projector reduces the speckle of a projection image on an arbitrary screen to such an extent as it cannot be recognized with human eyes, without having a significant effect on the image resolution, by periodically displacing the position of the smallest spot of laser light projected from the projection optical system. An image projection method is also provided.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: September 11, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Kenji Konno
  • Patent number: 8253651
    Abstract: A display apparatus and a method for driving a display panel thereof are provided. Each column of data line in the display panel has two sub-data lines. The driving method is described as follows. An input image signal is divided into a plurality of image segments, and each of the image segments has display data of pixels coupled to two adjacent scan lines. Every K image segments are defined as a group. An image signal is formed by inserting a reset data in each group of image segments. Display data of a first group are written in K batches according to a first start wave. After a predetermined time from the first start wave, the scan lines corresponding to the first group are driven at the same time according to a second start wave, and the reset data is output to the first sub-data lines and the second sub-data lines.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: August 28, 2012
    Assignee: Novatek Microelectronics Corp.
    Inventor: Feng-Ting Pai
  • Patent number: 8248425
    Abstract: Graphics display adapters for driving multiple display monitors have become very popular. Graphics display adapters that drive multiple monitors can be used to provide terminal services to multiple independent terminals or be used to provide multiple displays to a single user. Generating video signals for multiple display systems puts a heavy burden on the video memory system since multiple different video signal generators may read from associated frame buffers in a shared video memory system. In one disclosed embodiment, a plurality of video memory read triggers are provided wherein at least two of which are staggered to reduce the load on the video memory system. In response to each read trigger, display data is read from a frame buffer to an associated video signal generation circuit. Each video signal generation circuit then provides a display signal to an associated display screen in a multi-screen environment.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: August 21, 2012
    Assignee: nComputing Inc.
    Inventor: Subir Ghosh
  • Patent number: 8102386
    Abstract: An apparatus for driving a display device includes a signal controller which converts an input image signal of a first frame frequency into a plurality of output image signals of a second frame frequency and outputs the output image signals, and a data driver which selects the data voltages corresponding to the output image signals among one group of gray voltages and applies the data voltages to pixels, wherein the input image signal includes at least a first input image signal and a second input image signal, the output image signal includes a first output image signal corresponding to the first input image signal and a second output image signal corresponding to the second input image signal, and a pixel frequency of the first and second output image signals are the same.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: January 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Hyeung Park, Byung-Kil Jeon, Hyoung-Sik Nam
  • Patent number: 8096665
    Abstract: A high-resolution image is generated using multiple spatially offset lower-resolution digital micro-mirror device (DMD) panels. Multiple lower-resolution subframe signals for controlling the spatial light modulators are generated from a high-resolution image signal using a resolution reduction and interpolation algorithm. The spatial light modulators under control of the subframe signals are illuminated by a light source and light beams reflected from the spatial light modulators are combined and directed onto a screen for display.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: January 17, 2012
    Assignee: Miradia, Inc.
    Inventors: Matthew William Bellis, Dongmin Chen, Gregory Allen Miller
  • Patent number: 8089423
    Abstract: Control of multiple display screens associated with a computer, wherein the auxiliary screen display content that depends on conditions of the computer. During some times the auxiliary screen displays content associated with the presently executing program, and during other times the auxiliary screen displays history information. The rules can be automatically changed or manually changed.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: January 3, 2012
    Inventor: Scott C. Harris
  • Publication number: 20110279354
    Abstract: According to one aspect, embodiments of the invention provide a method comprising acts of providing an interface in the computer system adapted to be connected to an external display device and providing a controller in the computer system. The controller may be adapted to transmit output display signals to the external display device, wherein the output display signals are configured to generate a user interface, receive, from the external display device, external display device identification information, determine whether the external display device was previously connected to the computer system; and in response to determining that the external display device was previously connected to the computer system, automatically configure a layout of the user interface to display within a previously defined display area of the external display device and automatically compensate the layout of the user interface for a previously defined overscan region of the external display device.
    Type: Application
    Filed: October 22, 2010
    Publication date: November 17, 2011
    Inventors: Aaron Tang, Robert Sanford Havoc Pennington, John Chuang, Chris Bambacus, Eben Eliason, Chris Moody, Johan Bilien
  • Publication number: 20110227811
    Abstract: In a captured image outputting system, an image shot by an image capturing device is, upon shooting the image thereby, instantaneously transmitted to a display control device of a display system via wireless communication. The display system instantaneously projects the received image on a projection screen. The display system is comprised of a display device and a display control device. A liquid crystal projector may serve as the display device whereas an optional device, for use in wireless communication, connected to image input terminals of the liquid crystal projector may serve as the display control device. A digital still camera may serve as the image capturing device capable of carrying out wireless communication.
    Type: Application
    Filed: May 26, 2011
    Publication date: September 22, 2011
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Yasuhiro YAMAZAKI, Yasuaki Inoue, Yoshinao Hiranuma, Hiroki Miura
  • Patent number: 7893943
    Abstract: A system and method for converting a pixel rate of a digital image frame is provided. The system includes a display controller with an embedded buffer and programmable input and output buffers. The input buffer writes lines of the frame at a source pixel rate while the output pointer reads out lines of the frame at a display pixel rate thereby allowing display of an image having a source pixel rate that is different, e.g., higher, than a display pixel rate.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: February 22, 2011
    Assignee: Pixelworks, Inc.
    Inventor: Michael G. West
  • Patent number: 7885690
    Abstract: Methods for driving devices capable of displaying images and processing audio messages are provided. A representative method comprises: operating a device capable of displaying images and processing audio messages at a first operating frequency when the device is not processing audio messages; and operating the device at a second operating frequency higher than the first frequency when the device is processing audio messages.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: February 8, 2011
    Assignee: Toppoly Optoelectronics Corp.
    Inventors: Jui-Hsieh Shen, Yu-Yun Hsu, Ya-Lan Chen
  • Patent number: 7864137
    Abstract: An exemplary burning system (20) for a liquid crystal display includes a VGA (video graphics array) interface (230), a DVI (digital visual interface) (240), an interface-inverting circuit (220) configured for selectively switching between connectivity with the VGA interface and connectivity with the DVI, and a host computer (250) including a print interface (210). The host computer is configured for burning extended display identification data for the VGA interface into the liquid crystal display via the print interface, the interface-inverting circuit and the VGA interface, and is configured for burning extended display identification data for the DVI into the liquid crystal display via the print interface, the interface-inverting circuit and the DVI.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: January 4, 2011
    Assignees: Innocom Technology (Shenzhen) Co., Ltd., Chimei Innolux Corporation
    Inventors: Yi-Hsiang Kao, Zhong-Wu Tian
  • Patent number: 7834835
    Abstract: In a display control drive device that displays an image on a display device, a data transfer rate may vary depending on received image data because of a difference in an image size. Assuming that driving force with which a driver or an amplifier is driven is designed based on a maximum data transfer rate and the driver or amplifier is operated with the driving force, when the transfer rate is low, an unnecessary current is consumed. According to the present invention, a display control drive device sequentially reads display data from a display memory in which the display data is stored, produces three primary color image signals that are applied to pixel locations in a dot-matrix color display device, and transmits the signals through a common external output terminal in a time-sharing manner.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: November 16, 2010
    Assignee: Renesas Electronics Corporation
    Inventors: Yasuhito Kurokawa, Kunihiko Tani
  • Patent number: 7834866
    Abstract: A display panel driver includes: a clock generator for generating a clock signal; a horizontal reference generating circuit having a first frequency divider for dividing the frequency of the clock signal; a vertical reference generating circuit having a second frequency divider for dividing the frequency of the output from the first frequency divider; a switch circuit having one input terminal to which an external vertical synchronizing signal is supplied and having another input terminal to which the output signal from the second frequency divider is supplied and which selectively output one of said input terminals; and a CPU that alters the oscillation frequency of the clock generator or the frequency division ratio at the first frequency divider when a switching between the input terminals of the switch circuit is performed.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: November 16, 2010
    Assignee: NEC Viewtechnology, Ltd.
    Inventor: Yasunori Ogawa
  • Patent number: 7808498
    Abstract: The apparatus has an evaluated value calculating means 102 for calculating the complexity of the object shape and the complexity of the modeling structure of the object CAD data input by the CAD data inputting means 101; a searching means 104 for searching the reference CAD data in the reference CAD data base 103 in accordance with the condition of said complexity; an evaluated value calculating means 106 for calculating the complexity of the object shape and the complexity of the modeling structure based on the searched reference CAD data; and a displaying means 105 for evaluated values obtained by the means 102 and the means 106 on the graphic representation defining its horizontal axis for the complexity of the object shape and its vertical axis for the complexity of the modeling structure. It will be appreciated that the man-hour for evaluating large amount of various models can be reduced by means of not using a CAD system.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: October 5, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Shunsuke Minami, Koji Shiroyama, Tsutomu Sasaki
  • Patent number: 7755568
    Abstract: A video muting device for a digital video signal, and a video muting method thereof. The video muting device includes a scaler which determines according to a clock (CLK) signal of an inputted digital video signal whether a mode has changed, and generates an interrupt signal if the mode has changed, and a control part which generates a mute signal upon being input with the interrupt signal from the scaler. Accordingly, even when a digital signal, as well as an analog signal, is input, transient phenomena and noise generated during mode change can be effectively removed.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: July 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chul-ho You
  • Patent number: 7737960
    Abstract: A source frame signal received at a first frame rate is converted to a destination frame signal output at a second frame rate. By adjusting the clock frequency of the clock signal in the destination frame signal, the second frame rate is made to be the same as the first frame rate. Adjusting the destination clock frequency prevents overflow and underflow conditions. The destination clock frequency is decreased to prevent underflow or increased to prevent overflow. The destination clock frequency during the last horizontal line is adjusted to comply with some display devices having a maximum time constraint from a last horizontal sync signal to a vertical sync signal in the destination frame signal.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: June 15, 2010
    Assignee: Realtek Semiconductor Corp.
    Inventors: Jin-Sheng Gong, Issac Chen
  • Patent number: 7671821
    Abstract: An image signal generating unit supplies a single image signal to multiple image display units having different unit numbers. Embedded in the image signal is an index signal designating the image display units on which the image signal is to be displayed. Each image display unit compares its unit number with the index signal to select displayable frames of the image signal, preferably storing and displaying the most recent selected frame. Each image display unit can thereby display a different image. The image signal may have a standard format.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: March 2, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Jun Someya, Yoshiaki Okuno, Takao Nakano
  • Patent number: 7633499
    Abstract: A method, system and apparatus for synchronizing an analog video signal to an LCD monitor is described. For each of a succession of associated video frames are surveyed for a number of displayed features based upon a pseudo-random selection of regions into which the displayed video frame is divided. During successive associated video frames, a minimum number of features each is which is generated by an associated pixel clock is determined based upon a pre-selected number of scans. Subsequent to the determination of the minimum number of features, a transition region for each of plurality of horizontal resolution values is determined by scanning through a selected number of pixel clock phases. Based upon a minimum transition zone corresponding to a maximum change in the number of features for a particular pixel clock phase, an associated horizontal resolution is provided.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: December 15, 2009
    Assignee: Genesis Microchip Inc.
    Inventor: Greg Neal
  • Publication number: 20090273541
    Abstract: A frame rate conversion apparatus for performing frame rate conversion upon distributing an input-frame into a plurality of sub-frames detects the degree of motion of an image in the input-frame, determines the amount of distribution of the plurality of sub-frames in accordance with the detected degree of motion, and distributes and outputs the plurality of sub-frames in accordance with the determined amount of distribution.
    Type: Application
    Filed: April 14, 2009
    Publication date: November 5, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Ai Miyoshi
  • Patent number: 7589736
    Abstract: A system and method for converting a pixel rate of a digital image frame is provided. The system includes a display controller with an embedded buffer and programmable input and output buffers. The input buffer writes lines of the frame at a source pixel rate while the output pointer reads out lines of the frame at a display pixel rate thereby allowing display of an image having a source pixel rate that is different, e.g., higher, than a display pixel rate.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: September 15, 2009
    Assignee: Pixelworks, Inc.
    Inventor: Michael G. West
  • Publication number: 20090207098
    Abstract: A portable electronic device capable of displaying high resolution image is provided. The portable electronic device includes: a processor for providing a first video signal and a second video signal, wherein the first video signal is for displaying control options for selection, and the second video signal is generated according to a selected one of the control options; a display panel for displaying a first image with the control options according to the first video signal; a frame rate converter (FRC) for converting the second video signal into a third video signal; and a projector, independent of said display panel, for projecting a second image according to the third video signal, wherein the second image being controlled by the control options displayed on the display panel.
    Type: Application
    Filed: February 29, 2008
    Publication date: August 20, 2009
    Applicant: HIMAX DISPLAY, INC.
    Inventors: Yih-Long Tseng, Yung-Yuan Ho
  • Patent number: 7551185
    Abstract: A generic apparatus (14) re-orders video data for various types of displays, such as plasma discharge panels (PDPs), digital micro-mirror devices (DMDs), liquid crystal on silicon (LCOS) devices, and transpose scan cathode ray tube (CRT) displays. In one embodiment, the apparatus (14) includes a first programmable transpose processor (18), a memory (20, 120), and a second programmable transpose processor (22, 122) fabricated as a single IC unit.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: June 23, 2009
    Assignee: NXP B.V.
    Inventors: Rob Anne Beuker, Teunis Poot, Gerben Johan Hekstra
  • Patent number: 7496627
    Abstract: A convergence and automation system includes (a) an internet-protocol based network, (b) hardware implemented with a web service for devices (WSD) protocol, wherein the hardware includes a plurality of devices connected to the network, each device being configured to perform at least one service, and a server connected to network and configured to control the devices for converging and automating the services thereof; and (c) software implemented with the WSD protocol and configured to establish communication among the sever and the devices and perform a logging function to record events and errors taking places in the convergence and automation system.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: February 24, 2009
    Assignee: Exceptional Innovation, LLC
    Inventors: Seale Moorer, Eric Eichensehr
  • Publication number: 20090002264
    Abstract: A display apparatus and a method for driving a display panel thereof are provided. Each column of data line in the display panel has tow sub-data lines. The driving method is described as follows. An input image signal is divided into a plurality of image segments, and each of the image segments has display data of pixels coupled to two adjacent scan lines. Every K image segments are defined as a group. An image signal is formed by inserting a reset data in each group of image segments. Display data of a first group are written in K batches according to a first start wave. After a predetermined time from the first start wave, the scan lines corresponding to the first group are driven at the same time according to a second start wave, and the reset data is output to the first sub-data lines and the second sub-data lines.
    Type: Application
    Filed: August 22, 2007
    Publication date: January 1, 2009
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventor: Feng-Ting Pai
  • Publication number: 20080309583
    Abstract: A receiving assembly with a function of displaying scanning images about objects therein comprises a container having at least one receiving unit; at least one scanning unit being installed in the receiving unit for scanning data about objects in the receiving unit and transferring the data; a display unit for receiving data from the at least one scanning unit and displaying the data on a screen of the display unit; the display unit being installed at an exterior of the container; and an operating unit for adjusting display ways of the display unit, and wherein by the display unit to display data from the scanning unit, the object in the receiving unit can be known. The operating unit serves to divide the screen of the display unit into one frame or a plurality of sub-frames and the scanning unit includes a track unit, a driving unit and a scanning assembly.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 18, 2008
    Inventor: CHIH-CHING HSIEH
  • Patent number: 7456816
    Abstract: The invention relates to a lamp frequency control system for a display and method for controlling the lamp frequency. The lamp frequency control system comprises a driving control device and a lamp frequency control device. The driving control device has a driving mode selector for selecting a driving mode from at least two driving modes. According to the selected driving mode, the driving mode selector outputs at least one corresponding frequency control signal. According to the corresponding frequency control signal, the lamp frequency control device obtains at least one corresponding lamp frequency. According to the various driving mode, the lamp frequency control system of the invention obtains the corresponding lamp frequency. That is, the lamp frequency can be adjusted to match the driving mode. Therefore, the lamp frequency can be adjusted at a frequency section without the water flow interference. The lamp frequency control system of the invention can resolve the water flow interference.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: November 25, 2008
    Assignee: Chi Mei Optoelectronics Corp.
    Inventor: Shih-Ming Chen