Patents Examined by Alecia D. Nelson
  • Patent number: 6980192
    Abstract: An integrated circuit including a liquid crystal display has a multi-port data output section from which output signals are arranged with respect to a data input signal. Points of changing the signals with respect to a time base are set with time delays that lag behind one another during one period of a reference internal clock signal to reduce the number of simultaneous changes of output signals. The electromagnetic field noise is reduced by a LCD driver when display data are transferred from a LCD timing controller to a source drive IC. The driver includes TFT drive and display timing control circuits that transfer red, green and blue color display data formed of plural bits to the TFT drive circuit for each bit unit formed of plural bits, optionally selected from each of the color display data. A delay unit in the display timing control circuit delays the transfer timing among bit units. A dedicated IC supplies image data to a source driver IC that drives a display section.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: December 27, 2005
    Assignee: Kabushiki Kaisha Advanced Display
    Inventors: Tatsuya Matsumura, Kazuo Aoki, Kenji Gondo
  • Patent number: 6975293
    Abstract: An active matrix LED display driving circuit. The circuit comprises a first transistor having a drain, a source coupled to receive a data signal and a gate coupled to receive a scan signal and, a second transistor having a drain, a source coupled to receive the data signal and a gate coupled to receive the scan signal, a third transistor having a source, a drain coupled to the drain of the second transistor and a gate coupled to the drain of the first transistor, a fourth transistor having a drain coupled to receive a first voltage, and a gate coupled to receive the scan signal and a source coupled to the drain of the second transistor, a light emitting diode having an anode coupled to the source of the third transistor and a cathode coupled to receive a second voltage, and a capacitor coupled between the gate and source of the third transistor.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: December 13, 2005
    Assignee: Faraday Technology Corp.
    Inventors: Wen-Cheng Yen, Yu-Tong Lin
  • Patent number: 6970147
    Abstract: The driving apparatus for a plasma display panel is formed by a first priming pulse generation circuit for generating a first priming pulse having a first crest value; a second priming pulse generation circuit for generating a second priming pulse having a second crest value; and a drive control means for selectively controlling the first priming pulse generation circuit so as to output the first priming pulse and second priming pulse generation circuit so as to output the second priming pulse in accordance with a detection result obtained from the intensity detection means.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: November 29, 2005
    Assignee: Pioneer Corporation
    Inventors: Mitsuhiro Ishizuka, Takatoshi Shoji
  • Patent number: 6961053
    Abstract: A LCD display device with display density adjusting function characterized by that, in an equipment which comprises a controller, a memory, a LCD drive unit of dynamic drive, a LCD, and an input device for distinguishing a using condition, a display density of said LCD having to be changed in response to the using condition thereof, said controller controls said LCD drive unit so as to be capable of inserting a time period (T0) for outputting approximately same level of voltage to all common terminals and all segment terminals connected to the LCD into one frame period of LCD drive, and said controller selectively selects a value of time period (T0) for outputting approximately same level of voltage to all common terminals and all segment terminals connected to said LCD based on information from said input device for distinguishing a using condition and adjusts a display density of the LCD.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: November 1, 2005
    Assignee: Tanita Corporation
    Inventor: Koji Oguma
  • Patent number: 6956558
    Abstract: A force feedback wheel is provided on a mouse or other interface device manipulated by a user. A sensor detects a position of the mouse in a workspace and sends a position signal to a connected host computer indicating that position. A rotatable wheel is mounted upon the manipulandum and rotates about a wheel axis, where a wheel sensor provides a wheel signal to the host computer indicating a rotary position of the wheel. A wheel actuator coupled to the rotatable wheel applies a computer-modulated force to the wheel about the wheel axis. The mouse can be a standard mouse or a force-feedback mouse, where forces are applied in the mouse workspace. The host computer is preferably running a graphical environment, where the force applied to the wheel can correspond with an event or interaction displayed in the graphical environment. The wheel can also be included on other devices such as remote controls and radios.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: October 18, 2005
    Assignee: Immersion Corporation
    Inventors: Louis B. Rosenberg, Bruce M. Schena
  • Patent number: 6943753
    Abstract: Discriminator receiving a DDC transmission request from an external computer through a DDC control, judges whether a video signal inputted from the computer is a signal of analog specification or digital specification from an analog channel input detection signal from an analog synchronizing signal detector. On the basis of the judgment result, the discriminator controls the DDC control, input channel switch and OSD switch to switch EDID data, an input channel and OSD into ones supporting the specification of the video signal, respectively. In a display monitor having a DDC function which includes a DVI-I connector, with the above constitution, a correct setting of the input channel, EDID data and the like is automatically made in accordance with the specification of the input signal.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: September 13, 2005
    Assignee: NEC-Mitsubishi Electric Visual Systems Corporation
    Inventors: Yoshiyuki Shirasaki, Kazuo Yoshioka
  • Patent number: 6885364
    Abstract: An analog operation is possible by a pressing operation of a controller which is normally used for conventional digital operation. A detecting device (e.g., a pressure-sensitive device) for outputting an analog signal corresponding to the pressing operation by the controller is provided, the analog signal which is outputted by the detecting device is segmented into levels by a level segmenting unit, and the segmented analog signal is converted into a digital signal having a plurality of bits corresponding to the output level by an A/D converting unit. A segmenting-range setting unit (such as a memory) for setting the range of output levels of the analog signal which is segmented by the level segmenting unit is also provided. The level segmenting unit segments the output level of the analog signal which is outputted by the detecting device within the range which is set by the segmenting-range setting unit.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: April 26, 2005
    Assignee: Sony Computer Entertainment Inc.
    Inventors: Hiroki Ogata, Kazusato Tagawa, Hiroyuki Nakazawa, Youtaro Sakakura, Koji Mita
  • Patent number: 6882335
    Abstract: Display apparatus including a display and an orientation sensitive interface mechanism is disclosed. In an exemplary embodiment, the orientation sensitive interface includes first and second loudspeaker pairs. The first loudspeaker pair includes first and second loudspeakers and the second loudspeaker pair includes the second and third loudspeaker. The first and second loudspeaker pairs are disposed along transverse directions to each other. The display apparatus comprises a switch which switches between the first loudspeaker pair and the second loudspeaker pair. By providing the respective loudspeaker pairs, and switching between them, it is possible to orient the display apparatus in transverse directions corresponding to respective loudspeaker pairs, yet maintain a substantially stereophonic reproduction for each orientation.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: April 19, 2005
    Assignee: Nokia Corporation
    Inventor: Pertti Saarinen
  • Patent number: 6873316
    Abstract: An apparatus for filtering or suppressing a tactile feedback to a user of a computer cursor control device such as a pointing stick is provided. A pzt material is first mounted to a semi-rigid material such as by bonding the pzt material to a metal substrate. When an ac signal is applied to this assembly it vibrates. By coupling this mechanical vibration to the pointing stick, the user can sense the feedback. This can be used, for example, to provide a tactile feedback when the user depresses the pointing stick to cause a “mouse click.” In order to prevent unwanted cursor movement on the display, a suppression circuit is provided that filters out the spurious signals or completely deactivates cursor movement during activation of the tactile feedback.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: March 29, 2005
    Assignee: CTS Corporation
    Inventors: Thomas Henry Tichy, Steven L. Steinbrunner, Eric B. Taylor
  • Patent number: 6873312
    Abstract: An n-bit digital image data is converted to (n+m)-bit data with a g-correction table, and displayed by the use of a (n+m)-bit D/A converter. A peripheral-driver logic section is driven with a low-voltage common power source and countermeasures to noise are taken. Data input to the D/A converter is not reversed and the power to the D/A converter is made alternating to apply an AC voltage to aligned crystal layer. A circuit is provided in order to compensate for a delay time in the driver. With this configuration, the image quality of a liquid crystal display apparatus in which the D/A converter is built is improved.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: March 29, 2005
    Assignee: Seiko Epson Corporation
    Inventor: Yojiro Matsueda
  • Patent number: 6867759
    Abstract: A liquid crystal display device for restraining a generation of transient current is disclosed. In the device, a line memory divides a data for at least one line inputted from the exterior thereof into a plurality of groups to store the divided data therein and outputs the data at a desired unit from each of the groups. A driving circuit includes n driver integrated circuits (wherein n is an integer) that are connected to the line memory and a liquid crystal display panel to drive the liquid crystal display panel in response to the data outputted from the line memory. A timing controller is connected to the line memory and the driving circuit to receive a data clock inputted from the exterior thereof for outputting the data from the plurality of groups of said line memory to the driving circuit every period of the data clock in response to a time corresponding to the number of said groups.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: March 15, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jong Sang Baek, Chang Gone Kim
  • Patent number: 6847341
    Abstract: To provide a novel driving method for driving an electronic device by using digital gray scale and time gray scale in combination, which secures high duty ratio, which can display an image normally even when a sustain period is shorter than an address period, and which is hardly affected by dulled signal waveform. In a sub-frame period (102) where a sustain period is shorter than an address period, a clear period (105) is squeezed in between completion of a sustain period (104) and start of an address period of the subsequent sub-frame period. The length of the sustain period (104) thus can be set without being limited by the length of an address period (103). This non-display period is provided by changing the electric potential of a storage capacitor line. Therefore, unlike the case where the non-display period is provided by changing the electric potential of a cathode wiring, the present invention is hardly affected by dulled signal waveform.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: January 25, 2005
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Yoshifumi Tanada
  • Patent number: 6847348
    Abstract: Methods, computer program products and systems are provided for executing a function of a data processing computer system. The function may relate to an object. The method may be performed by: displaying a graphical representation of an object on a display device; receiving movement data from an input device, identifying a matching movement pattern that matches the cursor movement, which corresponds to the movement data; selecting a function that relates to the matching movement pattern and the object; and executing the function for the object. The identifying step can be performed by measuring the cursor movement as changes of the cursor coordinates occur. The result may then be compared to a plurality of predefined reference movement patterns. One movement pattern may be selected out of the plurality of reference movement patterns as the matching movement pattern for the object.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: January 25, 2005
    Assignee: SAP Aktiengesellschaft
    Inventor: Erwin Rojewski
  • Patent number: 6831626
    Abstract: In a temperature detecting circuit of the present invention, a bias voltage Vin with relatively steep temperature characteristics is supplied to an inverting input terminal of an inverting amplifier via a resistance R1, a resistance R2 is disposed between the inverting input terminal and an output terminal of the inverting amplifier, and an output of the inverting amplifier is supplied to a non-inverting input terminal of a non-inverting amplifier, and an inverting input terminal of the non-inverting amplifier is connected with a source of a reference potential via a resistance R3 and further connected with an output terminal via a resistance R4. Desired temperature characteristics can be obtained by properly setting resistivities of the resistances R1 and R2, while a desired output voltage value can be obtained for the temperature characteristics given by the inverting amplifier by properly setting resistivities of the resistances R3 and R4.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: December 14, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiro Nakamura, Masahiko Monomohshi
  • Patent number: 6822633
    Abstract: A liquid crystal display according to the present invention can prevent interference fringe on a display panel due to a switching noise of a DC/DC converter, therefore a high-quality image can be displayed. Either of input signals for a timing control circuit is also supplied to a PLL circuit and the DC/DC converter is controlled by an output signal of the PLL circuit, thereby enables to synchronize a switching frequency of the DC/DC converter and control signal.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: November 23, 2004
    Assignee: Advanced Display Inc.
    Inventors: Hironori Takaoka, Hisaharu Oura, Susumu Shibata, Tetsuya Ikemoto
  • Patent number: 6816134
    Abstract: There is provided a plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: November 9, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Kajiyama, Akira Katou, Kenichi Onisawa, Tetsuro Minemura, Kazuo Uetani, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
  • Patent number: 6788283
    Abstract: An electronic book includes pages with printed materials, a display showing selectively a plurality of images and a control circuit arranged to cause pictures to be displayed in accordance with pages being viewed by a reader. In one embodiment, a sensor is used to detect which page is the reader looking at. In other embodiments, an automatic sensor or a sensor operated by the reader is used to determine what images are to be shown. Multiple images are also displayed in sequence to form moving images. In addition, speakers may also be provided to reproduce sounds.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: September 7, 2004
    Assignee: Warner Bros. Entertainment Inc.
    Inventors: Randolph M. Blotky, Gregory B. Thagard, John H. Dargan
  • Patent number: 6784872
    Abstract: A bidirectional remote control system composed of an electronic appliance and a remote control. The electronic appliance is provided with a display information storage section for storing therein display information for displaying buttons, icons or the like necessary to control the electronic appliance itself, and a transmitting section for transmitting display information stored in the display information storage section to the remote control.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: August 31, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Matsui, Kouichi Harada
  • Patent number: 6771238
    Abstract: Disclosed is a high-definition liquid crystal display device wherein a video signal applied to the pixel electrode is compensated for a gain decrease in a high frequency range. A video signal processing circuit includes an inversion processing circuit which outputs at least one video signal inputted to a source driver circuit. The inversion processing circuit includes an amplifier and has function of amplification and inversion. A peaking processing circuit is connected to an amplifier in the inversion processing circuit. Even if a video signal frequency fvid is in a high range of the amplifier, the amplifier gain is increased up to an middle range value (frequency range that the gain becomes constant). Because the peaking circuit compensates for characteristics of the liquid crystal panel, it is possible for the inversion processing circuit to apply an alternating current signal reproduced with fidelity of a potential determined by a correction circuit to the liquid crystal cell.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: August 3, 2004
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Masaaki Hiroki
  • Patent number: RE38637
    Abstract: An electronic data collection device configured in a substantially two-dimensional arrangement is disclosed. The data collection device uses inexpensive flexible sheet materials to provide a flat framework in which to situate an interconnected combination of electronic components. The components provide an interactive function to supply input-output, control, and power functions. Components can include an information display, switches for responding to questions displayed on the information display, memory for storing responses to the questions, and a controller for controlling the operation of the data collection device. In addition, the device is provided with a data transfer interface that permits stored responses to be gathered by a response data accumulation device, such as a computer, having a corresponding interface.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: October 26, 2004
    Assignee: iPaper, LLC
    Inventor: Jim Paul Willard