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| Number | Title | Issue Date |
| 7342365 | Systems and methods for reducing input current in photoflash chargers A circuit for charging a photoflash that preferably reduces the average input to the switching regulator in an efficient fashion is provided. The regulator includes a transformer. The transformer includes a primary winding and a secondary winding. The switchi... | 03/11/2008 |
| 7336508 | Switching power source apparatus with voltage gate detector for the switch A switching power source apparatus has a switching element Q1. Between terminals of the switching element Q1, there is parasitic capacitance (C1, C2). A voltage V4 of parasitic oscillation appears at a gate of the switching element... | 02/26/2008 |
| 7304438 | Method and apparatus for preventing instabilities in radio-frequency plasma processing A method and apparatus for controlling a power supply to prevent instabilities due to dynamic loads in RF plasma processing systems, operating at frequencies of from 1 MHz and up, uses a feedforward type of control loop to tightly regulate the power supplied to the ... | 12/04/2007 |
| 7285989 | Device for detection of power-off A power-off detection device is formed without use of a photo coupler, which is expensive and occupies a relatively large area. The power-off detection device rectifies AC power, provided as external input power from a power supply device, into DC power, detects the... | 10/23/2007 |
| 7286622 | System and method for performing on-chip synchronization of system signals utilizing off-chip harmonic signal Aspects of the invention provide a method end system for reducing signal distortion within an on-chip transceiver module. In response to receipt of a signal bearing at least one external clock frequency, at least one harmonic signal of the signal bearing the at leas... | 10/23/2007 |
| 7268658 | Transformer having leakage inductance control structure A transformer having a leakage inductance control structure includes a primary coil, a secondary coil formed at a selected coil ratio relative to the primary coil to transform voltage and output electric power, and a leakage inductance control coil which is wound on... | 09/11/2007 |
| 7268750 | Method of controlling image display This invention discloses an arrangement for suppressing an erroneous display and suppressing damage to an image display apparatus when a power source is turned on, the power source is turned off, an outlet is removed, or power fails. Particularly, this invention dis... | 09/11/2007 |
| 7250926 | Method of driving flat display apparatus and driving system In a method of driving a display apparatus, a first combination of a first anode voltage and a first element voltage is selected to apply the first anode voltage to the anode electrode and apply the first element voltages to electron emitting elements selectively, d... | 07/31/2007 |
| 7235935 | Passive compensation of focus tracking utilizing winding and capacitor A video display apparatus includes a cathode ray tube and a high voltage transformer. The high voltage transformer incorporates a high voltage winding for producing an anode voltage in the cathode ray tube. The high voltage winding has a tap which provides a focus v... | 06/26/2007 |
| 7236077 | Transformer having adjustable leakage inductance A transformer having adjustable leakage inductance includes a primary winding coil, a secondary winding coil, a bobbin and a magnetic core assembly. The bobbin includes a winding section for winding the primary winding coil and the secondary winding coil thereon, wh... | 06/26/2007 |
| 7218910 | High impedance circuit A high impedance circuit of the present invention includes an LC parallel resonance circuit for raising circuit impedance, and a diode, which is connected in parallel to the LC parallel resonance circuit, causing a loop current to flow back via the diode and an indu... | 05/15/2007 |
| 7196737 | Method of using control loops in a broadband cable tuner Currently tuner circuits maintain normal power consumption while they are receiving RF signals and do not have provisions therein for disabling portions of their circuitry for reducing of power consumption. For example, during changing of channels, portions of the t... | 03/27/2007 |
| 7187371 | Display apparatus A display apparatus having a high voltage FBT driving circuit includes a transformer having a primary and a secondary coil, a high voltage detector to detect an output voltage of the secondary coil, a high voltage compensator to output a high voltage compensating si... | 03/06/2007 |
| 7138791 | Logic controlled high voltage resonant switching power supply Methods and apparatuses for a low EMI power supply. The power supply may include a control circuit, a power switch connected to the control circuit, an anti-parallel diode connected to the power switch, an inductor coupled to the anti-parallel diode, an output diode... | 11/21/2006 |
| 7098613 | High voltage deflection circuit A resonant pulse voltage having a positive polarity is applied by a first resonant circuit and a third resonant circuit to a horizontal deflection coil included in the first resonant circuit, and a resonant pulse voltage having a negative polarity which is opposite ... | 08/29/2006 |
| 7095308 | Step-up transformer Open ends of a number of secondary windings are fixed by winding them around a film projection portion formed by cutting and raising insulating films provided between the layers of the secondary windings. This eliminates the requirement that a number of terminals on... | 08/22/2006 |
| 7071636 | Scanning circuit of electron tube displays The invention concerns a control circuit for an electron tube display comprising a deflection coil, the deflection coil being part of a scanning circuit and being coupled to a coil of a transformer powering a high voltage generator used to accelerate an electron bea... | 07/04/2006 |
| 7072191 | Switching power source circuit for independent per cycle control of ON/OFF time ratio A switching power supply circuit, which can respond to a rapid and large change in a load quickly and stably and ensure a power supply output having a predetermined voltage, is provided. In the power supply circuit which supplies an input current to a load while swi... | 07/04/2006 |
| 7064501 | Sawtooth line circuit for a cathode ray tube A circuit arrangement is described for generating a sawtooth current in a cathode ray tube deflection coil. The circuit arrangement has a first and a second multiresonant section. The sections are arranged in series. The cathode ray tube deflection coil is part of t... | 06/20/2006 |
| 7049765 | Transformer for dimmer switch or on/off switch and method of use The present invention achieves the above objects, among others, by providing, in a preferred embodiment, a transformer system for use with either a dimmer switch or an on/off switch, including: a transformer; a load connected to the transformer; a first tap connecte... | 05/23/2006 |
| 7045977 | Vertical/horizontal amplitude controller The vertical/horizontal amplitude control device for controlling a vertical amplitude and a horizontal amplitude of an image display device for displaying a video signal includes a brightness level detector for detecting a brightness level of the video signal, a ver... | 05/16/2006 |
| 7030575 | Deflection supply voltage feedback control in conjunction with frequency change A video display includes a scanner operable at a first frequency and a higher second frequency. A switch mode power supply drives a transformer with three secondaries. First and second rectifiers & filters are associated with the first and second secondaries. A rect... | 04/18/2006 |
| 7023149 | CRT vertical scanning circuit with a low power standby The invention concerns a scanning circuit, comprising a power supply providing a negative voltage on a first terminal (Tdown), an intermediate voltage on a second terminal (Gnd) and a positive voltage on a terminal of a switch (S), the other terminal of the switch b... | 04/04/2006 |
| 7006161 | Bus operation with integrated circuits in an unpowered state A circuit configuration applicable to systems such as consumer electronics devices enables communication between components such as integrated circuits connected to the bus. According to an embodiment, the RUN power supplies are turned to an OFF state in response to... | 02/28/2006 |
| 6995526 | Digitally controlled vertical C linearity correction with constant start and end points without using an AGC A method and circuit for digitally controlled vertical C linearity correction with constant start and end points without using an AGC. A squared voltage and a negative squared voltage are added as a correction voltage to a sawtooth-shaped ramping voltage that is emp... | 02/07/2006 |
| 6989639 | Television image receiving apparatus and CRT display apparatus In a configuration equipped with an anode current detecting resistor connected between a ground side terminal of secondary coils wound around a flyback transformer and generating a high voltage for an anode of a CRT, it is equipped with declination detecting device ... | 01/24/2006 |
| 6987367 | Cathode-ray tube A prefocus lens section in an electron gun assembly includes a second grid that is disposed on an electron beam generating section side, a third grid that is disposed on a main lens section side, and a shield grid that is disposed between the second grid and the thi... | 01/17/2006 |
| 6972741 | Method of controlling image display This invention discloses an arrangement for suppressing an erroneous display and suppressing damage to an image display apparatus when a power source is turned on, the power source is turned off, an outlet is removed, or power fails. Particularly, this invention dis... | 12/06/2005 |
| 6969920 | Low current shape memory alloy devices An SMA device in which an SMA wire actuating element is operated periodically at a low voltage by power derived from a current source current which is too low to heat the wire directly sufficiently for effective actuation. The low current source is connected to a ca... | 11/29/2005 |
| 6958946 | Memory storage device which regulates sense voltages A memory storage device includes a memory cell configurable to have at least a first conductive state and includes a first and second conductor each electrically coupled to the memory cell. A regulation circuit is configured to regulate a sense voltage on the second... | 10/25/2005 |
| 6956749 | Switching power supply circuit A switching power supply circuit includes a converter transformer in which an output obtained by switching a direct current voltage of a converter through resonance is transmitted from the primary side to the secondary side. The switching power supply circuit furthe... | 10/18/2005 |
| 6927660 | Coil device with edgewise winding A coil device comprises at least one edgewise winding of a rectangular insulated wire and a holder on which the winding is mounted. The holder includes a plurality of terminal sections each composed of a terminal pin having one end portion adapted to be inserted in ... | 08/09/2005 |
| 6909267 | Logic controlled high voltage resonant switching power supply Methods and apparatuses for a low EMI power supply. The power supply may include a control circuit, a power switch connected to the control circuit, an anti-parallel diode connected to the power switch, an inductor coupled to the anti-parallel diode, an output diode... | 06/21/2005 |
| 6906688 | System and method for controlling horizontal size of monitor screen A system and method for controlling the horizontal size of a monitor screen are provided. The provided system for controlling the horizontal size of a monitor screen includes a processor, a driving circuit, and a microcomputer. Here, the processor generates a calibr... | 06/14/2005 |
| 6903351 | Charged particle beam irradiation equipment having scanning electromagnet power supplies A power supply for applying a voltage to a scanning electromagnet for deflecting a charged particle beam has a first power supply unit having no filter and a second power supply unit having a filter. When an irradiation position of the charged particle beam in an ir... | 06/07/2005 |
| 6900849 | Signal processing apparatus having means for reducing the power consumption A signal processing apparatus (1) includes a power supply input (20), a power supply connection (30) and a power supply output (27). A supply voltage generator (33) is connected to the power supply input (20) via disconnecti... | 05/31/2005 |
| 6897900 | Display apparatus comprising a cathode ray tube (CRT) A display apparatus, for instance a television receiver, comprises a cathode ray tube, a first circuit for providing a high voltage to the cathode and a second circuit receiving a gross signal and providing on at least an output at least a luminance signal controlli... | 05/24/2005 |
| 6847404 | Video display protection circuit An apparatus and a method for protecting a video display device, having an anode and a cathode, against excessive beam current conditions. In particular, the present invention protects the video display device against zero-biasing of the device, wherein the cathode ... | 01/25/2005 |
| 6744429 | Abnormal operation prevention circuit for display device and method for operating the same A display device includes a display unit with a plurality of pixels for displaying picture images, a driving unit for controlling operation of the respective pixels of the display unit, a power control unit for supplying a power to the driving unit and the display u... | 06/01/2004 |
| 6690126 | Power supplying apparatus for electron gun in CDT Disclosed is a power-supplying apparatus for an electron gun in a color display tube (CDT) provided with an fly back transformer (FBT) having a focus voltage output terminal and an acceleration voltage output terminal, further having a power supplying par... | 02/10/2004 |
