Patents Issued in January 9, 2003
-
Publication number: 20030006905Abstract: The present invention provides a new power switch apparatus design. Under this kind of design, a blue tooth module is placed in this power switch apparatus which receives signal from blue tooth control device. Control devices having blue tooth module may make up a wireless link to the power switch apparatus of this present invention. These devices having a blue tooth controllable function can remotely monitor and control the power switch of the power switch apparatus. On the other hand, the power switch apparatus may send the power consumption information itself to the a device that has a blue tooth controllable function. Therefore, the present invention's apparatus may provide a two-way communication between the power switch apparatus and the control device having blue tooth module.Type: ApplicationFiled: July 9, 2001Publication date: January 9, 2003Inventors: Jay Shieh, Yen-Hui Tsai, Ching-Yi Lin
-
Publication number: 20030006906Abstract: A synchronous CDMA telemetry system is provided for use in a wellbore. In one described embodiment, each data bit of digital outputs of multiple downhole data sources is multiplied by an orthogonal code unique to each data source. The resulting encoded outputs are modulated on a carrier frequency and summed on a transmission channel. The resulting signal is demodulated at a remote location and separately multiplied by each of the codes to separate out the contributions to the signal from each data source. The individual demodulated and decoded outputs are then integrated over the length of each data bit.Type: ApplicationFiled: February 1, 2002Publication date: January 9, 2003Inventors: Wallace R. Gardner, Roger L. Schultz
-
Publication number: 20030006907Abstract: A temperature tag and system for sensing and reporting an internal temperature reading inside a container. The temperature tag mounts on an outside surface of the container, and a shaft with a temperature sensor extends through the side of the container and senses the internal temperature reading. A plurality of readings may be recorded at a predefined sampling rate and stored in a data memory. The temperature tag then sends the temperature readings to a reader device that presents the temperature readings to a user. The reader device may trigger the temperature tag to send the temperature readings with a signal such as an infrared (IR) signal, a radio frequency (RF) signal, and the like. The temperature readings may be analyzed in the temperature tag, the reader device, or may be downloaded to a computer to determine if an alarm condition exists.Type: ApplicationFiled: July 5, 2002Publication date: January 9, 2003Inventors: Kenneth J. Lovegreen, James Livingston, Russell P. Blink
-
Publication number: 20030006908Abstract: An apparatus and method of projecting a no turn warning to an oncoming vehicle or pedestrian. The no turn warning indicates the motor vehicle is proceeding in a straight pathway through an intersection rather than turning either to the left or to the right. At least one visible light is mounted to the frontal exterior of the motor vehicle for projecting the no turn warning. When more than one visible light is mounted to the frontal exterior of the motor vehicle, the no turn signal can flash serial, sequentially or concurrently, in accordance with the controller's preprogrammed paradigm.Type: ApplicationFiled: July 3, 2001Publication date: January 9, 2003Inventor: John S. Wilson
-
Publication number: 20030006909Abstract: There is provided a system and method for controlling at least one traffic light having a vehicle having a transmitter and a receiver for transmitting and receiving traffic control signals, and a control unit for processing said traffic control signals; and a traffic control module having a transmitter and a receiver for transmitting and receiving said traffic control signals, a control unit for processing said traffic control signals, traffic light control logic for controlling said at least one traffic light, and means to connect to said at least one traffic light; wherein said traffic control signals control the flow of traffic about said at least one traffic light enabling said vehicle to travel from a present location to a destination passing through intersections at which traffic flow is controlled by said at least one traffic light.Type: ApplicationFiled: July 9, 2001Publication date: January 9, 2003Applicant: International Business Machines CorporationInventors: Sara H. Basson, Dimitri Kanevsky, Wlodek W. Zadrozny
-
Publication number: 20030006910Abstract: The invention provides a Controller-Pilot Data Link Communication (CPDLC) module that can be operatively connected to a cockpit audio system to aurally provide a pilot messages the module receives from ground control and to allow the pilot to operate the module with spoken commands. The module includes an enunciator circuit for playing out a string of digital audio data associated with a message and a voice recognition component for recognizing spoken commands and performing tasks in response to the commands. Thus, the pilot can use CPDLC protocols to exchange information with ground control yet communicate with ground control by listening and talking as if he was communicating with a voice radio. The module can also visually present messages and other information and receive input from programmable buttons and a knob. The functions of the buttons and knob change as the operational state of the module changes.Type: ApplicationFiled: June 4, 2002Publication date: January 9, 2003Inventor: Stephen G. Dame
-
Publication number: 20030006911Abstract: An interactive advertising system for providing interactive multimedia content to a client positioned in close proximity to an advertising display unit, the interactive advertising system comprising an advertising server, a data communications network, and an advertising platform. The advertising server stores client and advertising databases which contain records relating to the types of clients and the types of advertisements. The advertising server is coupled to the advertising platform over the communications network. The advertising platform comprises a multimedia display, a platform controller, and a GPS receiver. The multimedia display is configured and is controlled by the platform controller to provide interactive multimedia content to a client according to the existing conditions. Conditions can include the specific demographic or psychographic profile of the client, the time of day and the geographical position of the advertising platform.Type: ApplicationFiled: December 21, 2001Publication date: January 9, 2003Applicant: The Cadre Group Inc.Inventors: Brad Smith, John Lidzbarski
-
Publication number: 20030006912Abstract: The present invention provides for delivering information, such as a notification or other content, to a select communication device when defined event and location criteria are satisfied. A profile is established to define the event and location criteria along with a method for delivering the information. Typically, the receipt of event indicia indicating the occurrence of an event is compared with the event criteria in the profile. When the event indicia satisfies the event criteria, location indicia is gathered and compared with the defined location criteria. Alternatively, a trigger corresponding to location is received and compared with the location criteria before determining whether an event corresponding to the event criteria is satisfied. When both the event occurrence and location indicia match the event and location criteria, the information is sent to the appropriate communication device.Type: ApplicationFiled: July 3, 2001Publication date: January 9, 2003Inventor: Paul T. Brescia
-
Publication number: 20030006913Abstract: The present invention provides for delivering content, such as information, advertisements, directions, and news, to a mobile terminal based on location. The mobile terminal is configured to determine its location and whether content is available based on internal records. If content is available, the mobile terminal may initiate correspondence with an application server to obtain the content. The mobile terminal may keep a table identifying the availability of content for defined locations. Preferably, the locations relate to cells within a wireless network wherein the mobile terminal will check for the availability of content for a given cell and request the content. The mobile terminal may check for the availability of content periodically or when the servicing cell changes.Type: ApplicationFiled: July 3, 2001Publication date: January 9, 2003Inventors: Dennis P. Joyce, Michael J. Sutter, Kevin R. Drake
-
Publication number: 20030006914Abstract: In an information display system for a vehicle, an information receiving section receives positional information indicative of a present vehicle position and destination information indicative of a destination of the vehicle to derive a recommended route. A travel distance calculating section calculates a travelable distance on the basis of the obtained information. An editing section sets a travelable area of the vehicle according to the positional information, the travelable distance and guidance information, and edits route information including a recommended route within the travelable area. An outputting section displays the route information.Type: ApplicationFiled: July 8, 2002Publication date: January 9, 2003Applicant: Nissan Motor Co., Ltd.Inventors: Tsuyoshi Todoriki, Toshiro Muramatsu
-
Publication number: 20030006915Abstract: An on-line condition monitoring system for the real-time observation of a number of monitored objects comprises a sensor arranged at each object to generate signals representing the condition of the object, a substation for receiving signals from the object at certain measurement intervals and transmitting measurement data to a monitoring unit which has a processing unit and one or more workstations at which the condition of different objects can be observed, and a data network. The substation is further arranged to receive signals during a longer period from an object, which has been put into particular real-time observation. The substation and/or the workstation is arranged to process the signals received by the substation and to generate and present calculation results to the operator. The workstation is arranged by means of real-time signal analysis user interface software to display to the operator the measured signals and the results calculated from them.Type: ApplicationFiled: August 26, 2002Publication date: January 9, 2003Applicant: Metso Paper Automation OyInventors: Jarmo Kauppila, Aki Lehikoinen, Harri Mustonen
-
Publication number: 20030006916Abstract: A bit-rate converting apparatus and a method thereof, in which bit-rate conversion is executed by low computational complexity, are provided. The bit-rate conversion is executed in a frequency domain, and psycho-acoustic analysis is not needed by using information included in an inputted bit-stream before the bit-rate conversion is applied. With this, the computational complexity is lowered. And in order that many equal values are not contained in a frequency domain signal, which is inputted to a quantizing means, a quantized value before inverse quantizating is applied is modified, or an inverse quantized value after the inverse quantizing was applied is modified. With this, fine control for the bit-rate is made to be easy.Type: ApplicationFiled: July 2, 2002Publication date: January 9, 2003Applicant: NEC CorporationInventor: Yuichiro Takamizawa
-
Publication number: 20030006917Abstract: A variable length coding method and a variable length coding apparatus according to the present invention, as shown in FIG. 1, carries out step (a) of performing a VLC process and assigning a code to a combination of (Last, Run, Level), step (b) of subtracting LMAX as the maximum Level corresponding to (Last, Run) from Level to calculate amended Level and thereafter assigning a code to a combination of (Last, Run, amended Level), step (c) of subtracting a value that is obtained by adding 1 and RMAX as the maximum Run corresponding to (Last, Level) from Run to calculate amended Run and thereafter assigning a code to a combination of (Last, amended Run, Level), and step (d) of performing FLC assignment in parallel with each other, and includes step (e) of selecting the code according to predetermined priorities.Type: ApplicationFiled: February 21, 2002Publication date: January 9, 2003Inventors: Masahiro Ohashi, Tsuyoshi Nakamura
-
Publication number: 20030006918Abstract: An apparatus and method for parallel decompression of compressed canonical Huffman encoded data.Type: ApplicationFiled: January 22, 2002Publication date: January 9, 2003Applicant: Honeywell International, Inc.Inventor: Mark L. Barnett
-
Publication number: 20030006919Abstract: A method for compressing a message is disclosed, comprising: identifying a block of data within the message which is found in a previous message; generating a pointer identifying the block of data in said previous message; and replacing the block of data with the pointer in the message.Type: ApplicationFiled: July 9, 2001Publication date: January 9, 2003Inventors: Roger Collins, John Lawrence Friend
-
Publication number: 20030006920Abstract: A comparator with an offset canceling function and a D/A conversion apparatus capable of canceling an input/output offset with high accuracy using this comparator. To eliminate unbalance between right and left currents of the differential circuit making up the comparator, the phase of a single end output signal of the differential circuit is inverted and the inverted signal is fed back to one substrate of the differential pair MOS transistors as a substrate bias. Threshold voltages of the MOS transistors are changed and the current capacities of the transistors are adjusted in this way.Type: ApplicationFiled: June 18, 2002Publication date: January 9, 2003Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventor: Hirokazu Mori
-
Publication number: 20030006921Abstract: A data acquisition system uses an analog-to-digital converter (ADC) that includes a prediction feedback element. Using the computing power of a digital signal processor, the system predicts the next sample of the target signal based on pre-defined rules and previous samples. This digital prediction is converted to an analog signal using a digital-to-analog converter (DAC). An analog error summer compares the predicted signal with the target signal and creates an error signal. The digital signal processor uses the prediction error to more accurately predict the next sample. A negative feedback loop is thus formed by this system to drive the prediction error toward zero. Operating on the relatively small error signal in the forward and feedback paths enhances the conversion performance and data transfer efficiency.Type: ApplicationFiled: May 8, 2002Publication date: January 9, 2003Inventors: Philip S. Stetson, Teddy D. Thomas
-
Publication number: 20030006922Abstract: When forming PDM pulses by a D/A converter in accordance with digital signals, the D/A converter causes at least one of the rising stage and the falling stage of each of the PDM pulses to change stepwise. In addition, when forming PWM pulses by another D/A converter, the D/A converter causes at least one of the rising stage and the falling stage of each of the PWM pulses to change stepwise.Type: ApplicationFiled: May 14, 2002Publication date: January 9, 2003Inventors: Yasuo Morimoto, Toshio Kumamoto, Takashi Okuda, Takahiro Miki
-
Publication number: 20030006923Abstract: A clock synchronization device divides a digital-to-analog converting unit into main and sub digital-to-analog converters and operates both main and sub digital-to-analog converting units if an output voltage of the digital-to-analog converting unit is lower than a reference voltage based on a voltage obtained when the delay rate of a variable delay line VDL is sharply increased or operates only the main digital-to-analog converting unit if the output voltage of the digital-to-analog converting unit is higher than the reference voltage. As a result, the clock synchronization device can make the output voltage of the digital-to-analog converting unit be linear with respect to a digital code, thereby improving a jitter property in a band with a very large gain of the variable delay line.Type: ApplicationFiled: June 27, 2002Publication date: January 9, 2003Inventors: Se Jun Kim, Sang Hoon Hong
-
Publication number: 20030006924Abstract: An efficient technique for generating accurate on-chip DC reference voltages is based on filtering a digital pulse modulated sequence in order to extract its average value encoding a DC level, A passive on-chip filter is used for simplicity with an all-digital modulator implementation. Modulation is proposed using pulse-width and preferably pulse-density modulation methods. The latter has the advantage of using a significantly smaller filter which translates into a smaller implementation and faster operational settling times. Many digital pulse modulation generators are proposed.Type: ApplicationFiled: April 30, 2001Publication date: January 9, 2003Inventors: Gordon W. Roberts, Mohamed Hafed, Sebastien Laberge
-
Publication number: 20030006925Abstract: A multiple receiver approach is disclosed for a pulse decoding communication system, which can enhance system robustness and increase information carrying capacity. Two or more receivers are used to produce groups of pulses from a received signal. In one embodiment, system robustness is enhanced by redundancy. In another embodiment, information capacity is increased by producing independent groups of pulses from one cycle of an analog waveform.Type: ApplicationFiled: May 23, 2002Publication date: January 9, 2003Applicant: The National University of SingaporeInventors: Jurianto Joe, Kin M. Lye
-
Publication number: 20030006926Abstract: In an analog-to-digital conversion circuit, the gain of an operational amplification circuit in each of first- to third-stage circuits is two. The reference voltage range of a sub-A/D converter in each of the stages of circuits is set to one-half the reference voltage range of a D/A converter, so that the output voltage range of the D/A converter coincides with the output voltage range of the operational amplification circuit. When the voltage range of the analog input signal is VINp-p, the full-scale range of the sub-A/D converter is switched to VINp-p, and the gain of the operational amplification circuit is one. When the voltage range of the analog input signal is VINp-p/2, the full-scale range of the sub-A/D converter is switched to VINp-p/2, and the gain of the operational amplification circuit is two.Type: ApplicationFiled: June 18, 2002Publication date: January 9, 2003Inventors: Norihiro Nikai, Atsushi Wada, Kuniyuki Tani, Yasuyuki Kimura, Kenichi Kato
-
Publication number: 20030006927Abstract: For interferometric and/or tomographic remote sensing by means of synthetic aperture radar (SAR) one to N receiver satellites and/or transmitter satellites and/or transceiver satellites with a horizontal across-track shift the same or differing in amplitude form a configuration of satellites orbiting at the same altitude and same velocity. Furthermore, a horizontal along-track separation, constant irrespective of the orbital position, is adjustable between the individual receiver satellites.Type: ApplicationFiled: July 1, 2002Publication date: January 9, 2003Applicant: Deutsches Zentrum fur Luft- und Raumfahrt e.V.Inventors: Alberto Moreira, Gerhard Krieger, Josef Mittermayer
-
Publication number: 20030006928Abstract: A system for allowing pilots to quickly determine weather hazard-free flight paths and weather hazards that exist along the aircraft flight plan. The system includes a memory, a processor, and a display device. The memory stores weather radar return information in a three-dimensional buffer. The processor is coupled to the memory. The processor receives a display distance value signal, retrieves weather radar return information stored in a plane of voxels in the three-dimensional buffer based on the selected display distance value and aircraft position information, and generates an image based on the retrieved weather radar return information. The display device is coupled to the processor for displaying the generated image.Type: ApplicationFiled: February 19, 2002Publication date: January 9, 2003Applicant: Honeywell International, Inc.Inventors: Roland Y. Szeto, Bill G. Cornell
-
Publication number: 20030006929Abstract: One aspect of the invention is a method of measuring the speed at which a variational gravitational field propagates. The gravitational field relates to a planet, and the planet has object of sufficient mass to change the gravitational field.Type: ApplicationFiled: February 1, 2002Publication date: January 9, 2003Inventor: Guanghua Huang
-
Publication number: 20030006930Abstract: A system and method for detecting and tracking a target object, including the calculation of the target object's altitude, is disclosed. During the processing of signals received by a receiver, the system selectively calculates the altitude of the target object from signals modified by an interference effect pattern formed by the signals broadcast by a transmitter, or from the calculation of geometric shapes associated with three or more transmitters and determining the intersection point of those shapes.Type: ApplicationFiled: May 6, 2002Publication date: January 9, 2003Applicant: Lockheed Martin Corp.Inventors: Richard A. Lodwig, Bonnie L. Adams, Gregory A. Baker
-
Publication number: 20030006931Abstract: A system and method for accurately locating the position of wireless or wired devices used for playing casino games. The system includes a plurality of transmitters located throughout the interior of the building and on the grounds of the building property for communicating with the device. The transmitters are connected to a CDMA server or the like that is connected to a GPS base station or the like to assist in determining the precise location of the device and to verify that the device is located in an area where casino games may be lawfully played.Type: ApplicationFiled: July 3, 2002Publication date: January 9, 2003Inventor: Ken Mages
-
Publication number: 20030006932Abstract: The present invention provides a hyper-scanning digital beam former, which includes a plurality of digitizing units (N) having respective inputs for receiving a respective signal from a plurality of elements of an antenna. The digitizing units are operably configured to digitally convert the element antenna signals at a first clock rate; a summing circuit having an input for receiving the digital signals from respective outputs of the digitizing units and operably configured to generate a plurality of output signals (M) by summing ones of the digital signals; and a channel processor having an input for receiving the M output signals and operably configured to process the M output signals at a second clock rate in which the second clock rate is at least M times faster than the first clock rate.Type: ApplicationFiled: June 28, 2001Publication date: January 9, 2003Inventor: Thomas L. Frey
-
Publication number: 20030006933Abstract: In an electronic circuit for forming an antenna pattern the antenna signals having the required phase shift are generated by means of two phase locked loops which have a common reference signal. A control current which is added at the output node of the charge pump 26 and/or 27 is used to control the phase shift of the antenna signals. This allows the implementation of the phase shift operation in the analogue domain, which decreases the cost of a corresponding consumer device, such as a car-radio or a mobile communication system.Type: ApplicationFiled: April 24, 2002Publication date: January 9, 2003Inventors: Wolfdietrich Georg Kasperkovitz, Lukas Leyten, Nunziatina Mezzasalma, Cicero Silveira Vaucher
-
Publication number: 20030006934Abstract: An adaptive array antenna comprising array antenna elements, first and second phase control circuits for transmission data packet, a distributor distributing the transmission data packet to one of the first and second phase control circuits based on the destination, and phase shift amount control circuit controlling the phase shift amount of the first and second phase control circuits based on the destination.Type: ApplicationFiled: September 13, 2002Publication date: January 9, 2003Inventor: Shuichi Obayashi
-
Publication number: 20030006935Abstract: The present invention provides a method for the real-time location of a multiplicity of Mobile Units by correlating a commanded radio signal from the specific Mobile Units received by multiple fixed antennae. The Mobile Units are equipped with a transceiver that is activated by an encoded broadcast and responds with a burst transmission on a separate frequency that is received by several well-surveyed antennae at slightly different times due to the variable distance of the Mobile Units to the Fixed Receiver antennae. The location of a Mobile Unit is determined by resolving the burst transmission time delay differences from at least four fixed antennae to eliminate the common system unknowns.Type: ApplicationFiled: July 9, 2001Publication date: January 9, 2003Inventor: Fm Bay
-
Publication number: 20030006936Abstract: A surface-mounted antenna comprising a substrate made of a high-dielectric constant material having a dielectric constant ∈r of 6 or more, a ribbon-shaped radiation electrode having one end which is grounded and the other end which is open, a grounding electrode connected or capacitance-coupled to one end of the radiation electrode, and a current-feeding electrode in a portal shape formed on a side surface separate from the radiation electrode with a gap; the current-feeding electrode having a current-feeding portion at one end, a grounding portion at the other end, and a portion substantially in alignment with the radiation electrode between them; and the length of the aligning portion, a gap width or a portal shape being able to be properly set such that capacitance owned by the current-feeding electrode and inductance can be adjusted for easily achieving impedance matching.Type: ApplicationFiled: June 14, 2002Publication date: January 9, 2003Applicant: HITACHI METALS, LTD.Inventors: Hiroyuki Aoyama, Keiko Kikuchi, Yasunori Takaki, Hidetoshi Hagiwara
-
Publication number: 20030006937Abstract: An antenna apparatus is constituted by first, second, third, and fourth wire antenna elements and a connection element. The sum of the lengths of the first, second, and fourth wire antenna elements is ¼ the wavelength corresponding to a series-resonance frequency of the first, second, and fourth wire antenna elements. The sum of the lengths of the second, third, and fourth wire antenna elements is ½ the wavelength corresponding to a parallel-resonance frequency of the second, third, and fourth wire antenna elements. The sum of the lengths of the first and third wire antenna elements is ¼ the wavelength corresponding to a series-resonance frequency of the first and third wire antenna elements. The parallel-resonance frequency is higher than the series-resonance frequency of the first, second, and fourth wire antenna elements and lower than the series-resonance frequency of the first and third wire antenna elements.Type: ApplicationFiled: July 5, 2002Publication date: January 9, 2003Inventors: Syuichi Sekine, Takayoshi Ito, Yasushi Murakami, Hiroki Shoki
-
Publication number: 20030006938Abstract: The present invention relates to an antenna (1), comprising a dielectric substrate (2) comprising a front (3) and a back (4) dielectric face, at least one dipole means comprising a first (5) and a second (6) element for radiating and receiving electromagnetic signals, said first element (5) being printed on said front face (3) and said second element (6) being printed on said back face (4), said first and said second element having a spiral shape, respectively, both spirals being open, and metal feeding means for supplying signals to and from said dipole means, said metal feeding means comprising a first line (7) printed on said front face (3) and to said first element (5) coupled at a first feeding point and a second line (8) printed on said back (4) face and coupled to said second element (6) at a second feeding point, said first and said second feeding point overlapping each other.Type: ApplicationFiled: June 24, 2002Publication date: January 9, 2003Inventors: Aleksandar Nesic, Veselin Brankovic
-
Publication number: 20030006939Abstract: Transportable, autonomously operating equipment as a network node between networks for transmitting analog, digital and/or pulse-modulated signals in communication connections between a satellite and exchanges for extension stations and/or terminal stations with antennas, modules, walls, doors and/or vent openings, as well as a method for establishing the communication connections by automatically leveling the equipment and calculating the data for controlling the satellite antenna and the north-south position of the equipmentType: ApplicationFiled: October 15, 2001Publication date: January 9, 2003Inventors: Detlef Drews, Klaus Dallinger
-
Publication number: 20030006940Abstract: A line-shaped comprises an antenna element in which a strip-shaped conductor is bent in a width direction of a strip, and a chamfered portion is provided on an outer edge of a bent portion of the strip-shaped conductor.Type: ApplicationFiled: May 15, 2002Publication date: January 9, 2003Inventors: Takanori Washiro, Isao Tomomatsu, Hiroki Hamada, Shinji Satoh
-
Publication number: 20030006941Abstract: A multi-beam antenna comprises an electromagnetic lens, at least one first antenna feed element, at least one second antenna feed element, and a selective element located between first and second portions of the electromagnetic lens with which the respective antenna feed elements respectively cooperate. The transmissivity and reflectivity of the selective element are responsive to an electromagnetic wave property, e.g. frequency or polarization. A first electromagnetic wave in cooperation with the at least one first antenna feed element and having a first value of the electromagnetic wave property is substantially transmitted through the selective element so as to propagate in both the first and second portions of the electromagnetic lens. A second electromagnetic wave in cooperation with the at least one second antenna feed element and having a second value of the electromagnetic wave property is substantially reflected by the selective element.Type: ApplicationFiled: July 23, 2002Publication date: January 9, 2003Inventors: James P. Ebling, Gabriel Rebeiz
-
Publication number: 20030006942Abstract: A portable hand-held device having a main display is provided with an auxiliary display that effectively doubles the useful viewing area. An auxiliary display video memory is allocated in memory and managed by a microprocessor within the device. The auxiliary display is either pivotally or slidingly mounted to a body portion of the device, preferably adjacent an outside edge of the main display to provide concurrent dual-display viewing and optional contiguity of displayed subject matter. A video memory management mechanism for managing the dual-display video memory in memory and for enabling pixel data to one or both of the displays may be hardware assisted, as by use of a high-speed video replay and/or rendering hardware mechanism. When not deployed for viewing, the auxiliary display folds or slides within the general confines of the body of the hand-held portable device, which may be a personal digital assistant (PDA), pocket personal computer (PC) or personal digital assistant (PDA).Type: ApplicationFiled: July 5, 2001Publication date: January 9, 2003Inventors: Damion Searls, Prateek Dujari, Terrance Dishongh, Bin Lian
-
Publication number: 20030006943Abstract: There are provided: a display surface (20) (mixed picture display part) for assigning a plurality of pieces of video information, respectively, to a plurality of a first divided area (S-I), a second divided area (S-II) and a third divided area (S-III), so as to display the plurality of the pieces of the video information on the display surface (20); a first picture separating mechanism disposed on the display surface (20) corresponding to the first divided area (S-I) of the plurality of the divided areas (S-I, S-II, S-III), and defining a predetermined polarizing direction; a second picture separating mechanism disposed on the display surface (20) corresponding to the second divided area (S-II) and the third divided area (S-III) of the plurality of the divided areas (S-I, S-II, S-III), and defining a predetermined polarizing direction different from the polarizing direction of the first picture separating mechanism; mirrors (optical means) (31, 32) disposed rightward and leftward relative to the display surfaType: ApplicationFiled: July 31, 2002Publication date: January 9, 2003Inventors: Seiji Sato, Hidehiko Sekizawa
-
Publication number: 20030006944Abstract: A driving method for a plasma display panel realizes a high quality display at low power consumption while restraining a false contour. After a selective discharge for setting discharge cells to a light-on state or a light-off state is generated in one subfield of N subfields constituting each field, the selective discharge is generated again only in subfields placed at predetermined positions from the beginning of each field.Type: ApplicationFiled: June 28, 2002Publication date: January 9, 2003Applicant: PIONEER CORPORATIONInventors: Takashi Iwami, Shigeru Iwaoka
-
Publication number: 20030006945Abstract: A plasma display panel that minimizes the power consumption required for driving the PDP is disclosed. A reset pulse of a ramp-down waveform supplied in a reset period goes down to a voltage level higher than a negative scan reference voltage, and is kept for a specified period. Also, a sustain pulse voltage level of a selective erase type sub-field is provided with a voltage level relatively higher than the sustain pulse provided from the selective write type sub-field, or a reset pulse of a ramp-up waveform that goes from a maximum voltage level of the ramp-up waveform down to a ground voltage level or more is supplied to a scan electrode as well as a selective erase scan pulse descends from a predetermined selective erase scan voltage level to the ground level or more. Therefore, the data driving voltage is minimized, and the display state is stabilized.Type: ApplicationFiled: July 8, 2002Publication date: January 9, 2003Applicant: LG Electronics Inc.Inventors: Geun Soo Lim, Jeong Pil Choi, Tae Hyung Kim, Dai Hyun Kim
-
Publication number: 20030006946Abstract: With the present invention, there is provided a driving method that favorably drives an electron source, which is driven in a passive matrix manner, without being affected by a disturbance. There is also provided an image-forming apparatus that uses this electron source. An anode electrode having a constant potential is arranged over a plurality of electron-emitting devices including gate electrodes and cathode electrodes. During passive matrix driving of the electron source where the amount of electrons to be emitted is adjusted by modulating potentials between the cathode electrodes and the gate electrodes, a predetermined time difference is maintained between the driving of signal lines in a group and the driving of signal lines in another group during the driving of signal lines divided into N groups after selection of scanning lines.Type: ApplicationFiled: June 19, 2002Publication date: January 9, 2003Inventor: Takeshi Ichikawa
-
Publication number: 20030006947Abstract: A field emission display device, including data lines which are formed in a panel, scan lines which are formed in the direction crossing the data lines in the panel, a first connector which is installed at an end of the data lines and electrically connected with the data lines, a second connector which is installed at an end of the scan lines and electrically connected with the scan lines and a printed circuit board which is installed on the rear surface of the panel, can display an image of a uniform brightness regardless of the position of the screen, and manufacture the device as a large screen. Also, the present invention can maintain the brightness of the whole screen uniformly by differently supplying the driving voltage and pulse width of the driving voltage which are supplied to the data driving driver according to the position of the data line, and compensating voltage descending caused by difference in the resistance according to the position of the scan line by converting the inputted data value.Type: ApplicationFiled: June 26, 2002Publication date: January 9, 2003Applicant: LG ELECTRONICS INC.Inventor: Seong Hak Moon
-
Publication number: 20030006948Abstract: A liquid crystal display device in which a actual image and a black image are displayed alternately in a frame to prevent motion blur. A black image gate pulse and an actual image gate pulse are overlapped between two spaced scanning lines at an arbitrary moment of a frame to pre-charge a pixel voltage applied to pixels of the overlapped scanning line. The liquid crystal display device further includes a line memory that outputs a data signal to a data integrated circuit by dividing the data signal into at least two data signals to increase a data processing speed.Type: ApplicationFiled: December 28, 2001Publication date: January 9, 2003Inventors: Hyeon-Ho Son, Ku-Hyun Park
-
Publication number: 20030006949Abstract: An overdrive controller for driving a liquid crystal display includes a change rate Rst calculating section for comprehending a transition state from a present brightness to a targeted brightness for each of R, G and B sub-pixels, a select section for selecting the sub-pixel with the slowest transition and the other sub-pixels from the comprehended transition states, and an overdrive voltage calculating section for calculating a voltage to accelerate a transition of brightness for the sub-pixel with the slowest transition. The overdrive controller further includes, an effective brightness Yst′ calculating section and Yst′ overdrive voltage calculating section for calculating a voltage to accelerate or to decelerate a transition of brightness for the other sub-pixels in order to coordination with each other, wherein the voltage is switched by a switch 23 to be supplied.Type: ApplicationFiled: July 8, 2002Publication date: January 9, 2003Inventors: Kazuo Sekiya, Hajime Nakamura
-
Publication number: 20030006950Abstract: Disclosed is a method for driving an active matrix type liquid crystal display device including a first electrode, a second electrode, and a liquid crystal layer interposed between the first and the second electrodes, and the liquid crystal layer having a larger polarization when a voltage of a first polarity is applied to the first electrode against the second electrode than that when a voltage of a second polarity different from the first polarity is applied to the first electrode against the second electrode, the method comprising dividing a frame into a first field and a second field, applying a first voltage of the first polarity to the first electrode during the first field, generating a second voltage from the first voltage by changing its polarity, a magnitude of the second voltage being modified by an amount of &Dgr;V(&Dgr;V≠0) based on a magnitude of the first voltage in a direction of the first polarity when the first voltage is not zero, and applying the second voltage to the first electrode duType: ApplicationFiled: June 21, 2002Publication date: January 9, 2003Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tatsuo Saishu, Haruhiko Okumura, Kohki Takatoh, Hajime Yamaguchi, Rei Hasegawa, Hitoshi Kobayahi, Rieko Fukushima
-
Publication number: 20030006951Abstract: A display data processing circuit and liquid crystal display device are provided which are capable of performing conversions between input display data and output display data even with reduced memory capacity. The display data processing circuit includes a storing section to store a power value of a decimal portion of a coefficient setting value, processing section to calculate a power value of an integral portion of the coefficient setting value and to perform a multiplication among the value obtained by the calculation, a value read from the storing section, and a number of gray-scale levels of the input display data, and a look-up table to convert a gray-scale value of input display data to a gray-scale value of output display data based on the coefficient setting value by storing values corresponding to all gray-scale values that the input display data can take on and by reading the value obtained from multiplication by the processing section corresponding to gray-scale values of input display data.Type: ApplicationFiled: June 24, 2002Publication date: January 9, 2003Applicant: NEC CorporationInventor: Masahiro Ito
-
Publication number: 20030006952Abstract: This invention relates to a method and apparatus for driving a liquid crystal display that is capable of improving the viewing angle by converting a gray scale having poor viewing angle characteristics into a gray scale combination having good viewing angle characteristics. A driving method of a liquid crystal display for wide viewing angle of the present invention, time-divides one frame into at least two sub-frames for driving the liquid crystal display such that an arbitrary main grayscale is expressed by the combination of the sub-grayscales expressed at each of at least two sub-frames. Accordingly, the grayscale with poor viewing angle characteristics is time-divided into at least two grayscales with good viewing angle characteristics and the liquid crystal display is driven, thereby improving the viewing angle.Type: ApplicationFiled: June 28, 2002Publication date: January 9, 2003Applicant: LG. Philips LCD Co., LTDInventor: Hyung Ki Hong
-
Publication number: 20030006953Abstract: A scan driving circuit and driving method for active matrix liquid crystal display is disclosed. The scan driving circuit comprises a switching circuit including a plurality of low-temperature poly-silicon MOS devices of same conductivity type formed on the liquid crystal display panel and a plurality of control signal input ports connected to the switching circuit, in which the number of the control signal input ports is less than that of the scan lines of the liquid crystal display panel, and the switching circuit is coupled between the scan lines and the control signal input ports. The driving method comprises providing a plurality of control signals consisted of sequential or back-and-forth pulses coupled to the control signal input ports from outside of the panel for operation of the switching circuit to drive the scan lines.Type: ApplicationFiled: October 4, 2001Publication date: January 9, 2003Inventors: Ho-Hsin Yang, Yong-Nien Rao, Ya-Hsiang Tai
-
Publication number: 20030006954Abstract: An active matrix-type liquid crystal panel is driven for a motion picture display in a succession of frame periods to provide an improved motion picture quality without causing a lowering in luminance or contrast, or a display irregularity over the panel due to a signal transmission delay along the panel electrodes. In the driving method, each frame period is divided into a plurality of sub-frame periods including at least one preceding sub-frame period and a final sub-frame period so that said at least one preceding sub-frame period provides a total period which is shorter than the final sub-frame period; the active elements along the rows of pixels are sequentially selected row by row at respective selection periods in each sub-frame period; and the liquid crystal at each pixel is supplied with a voltage in a selection period of each preceding sub-frame period which is lower than a voltage applied to the liquid crystal at the pixel in the final sub-final period.Type: ApplicationFiled: September 10, 2002Publication date: January 9, 2003Inventor: Jun Iba