中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

698 records (took 0.033 seconds)

    Direct drive LED driver and offline charge pump and method therefor
    21.
    发明授权
    Direct drive LED driver and offline charge pump and method therefor 有权

    公开(公告)号：US10515035B2

    公开(公告)日：2019-12-24

    申请号：US16167206

    申请日：2018-10-22

    Applicant: David Schie ,  Mike Ward

    Inventor： David Schie ,  Mike Ward

    IPC: G06F13/28 ,  G06F13/40 ,  H02M3/07 ,  H05B33/00 ,  H03K19/177

    Abstract: In one embodiment, a Light Emitting Diode (LED) driving device for driving a plurality of LEDs has a switching matrix utilizing a plurality of one of a turn off thyristors or turn off triacs coupled to the plurality of LEDs. A controller is coupled to the switching matrix responsive to a voltage of a rectified AC halfwave, wherein combinations of the plurality of LEDs are altered to ensure a maximum operating voltage of the plurality of LEDs is not exceeded. A current limiting device is coupled to the combinations of the plurality of LED to regulate current.In a second embodiment an offline charge pump utilizes a switching matrix to recombine capacitors in accordance with the voltage on the AC half wave and then in accordance with a desired output voltage to feed a load, such that said recombinations occur at a frequency much higher than the frequency of the AC rectified half wave such that charge is “pumped” from the input at one voltage to the output at another voltage through the AC halfwave while providing a constant output voltage to the load.

    Gated thyristor power device having a rapid turn off time
    26.
    发明授权
    Gated thyristor power device having a rapid turn off time 有权

    公开(公告)号：US10263533B2

    公开(公告)日：2019-04-16

    申请号：US14828335

    申请日：2015-08-17

    Applicant: David Schie

    Inventor： David Schie

    IPC: H02M7/155 ,  H02M7/145 ,  H01L29/745 ,  H02M1/42 ,  H01L29/10

    Abstract: An improved gated thyristor that utilizes less silicon area than IGBT, BIPOLARs or MOSFETs sized for the same application is provided. Embodiments of the inventive thyristor have a lower gate charge, and a lower forward drop for a given current density. Embodiments of the thyristor once triggered have a latch structure that does not have the same Cgd or Ceb capacitor that must be charged from the gate, and therefore the gated thyristor is cheaper to produce, and requires a smaller gate driver, and takes up less space than standard solutions. Embodiments of the inventive thyristor provide a faster turn off speed than the typical >600 ns using a modified MCT structure which results in the improved tail current turn off profile (

    Video bingo game and method therefor
    27.
    发明授权
    Video bingo game and method therefor 有权

    公开(公告)号：US10229560B2

    公开(公告)日：2019-03-12

    申请号：US14066117

    申请日：2013-10-29

    Applicant: Gary Weingardt

    Inventor： Gary Weingardt ,  Gamin Weingardt ,  Gary L. Loebig

    IPC: G07F17/32

    Abstract: A method of operating a video gaming system having program instructions, the programming instructions comprising: providing each player with at least one individual flashboard having suit and value indicia and a game ending pattern outlined thereon; providing a plurality of bingo balls; randomly selecting a first group of bingo balls; displaying to each player the markings associated with each selected bingo ball of the first group of bingo balls; marking each square associated with each of the first group of bingo balls on each individual flashcard; selecting a second group of bingo balls, wherein a total number of bingo balls in the first group and the second group is equal to a least amount of balls needed to completely fill the game ending pattern; displaying to each player the markings associated with each selected bingo ball of the second group of bingo balls; and determining any winning flashboard.

    Table game multiplier system and method therefor
    29.
    发明授权
    Table game multiplier system and method therefor 有权

    公开(公告)号：US10183214B2

    公开(公告)日：2019-01-22

    申请号：US15964696

    申请日：2018-04-27

    Applicant: Howard B. Katz

    Inventor： Howard B. Katz

    IPC: G07F17/32 ,  A63F9/24 ,  A63F3/00 ,  G06Q50/34

    Abstract: A table game multiplier system and method expands the play of a craps table by allowing a player to wager on a live-action craps table game being played at a table in a system operator, such as a casino or other suitable establishment, without requiring the person to be physically present at the craps table. The system allows the live-action craps table game to be virtually tiered or duplicated, thereby allowing a set of additional players to wager on a craps table identical to the one being played at a particular system operator. The additional players may connect to the table game multiplier system via an electronic telecommunication device such as, but not limited to, a smartphone, a tablet computer, or a personal computer, which may communicate with the system operator to allow the electronic placing of wagers on the tiered craps table.

    Dual mode headphone and method therefor
    30.
    发明授权
    Dual mode headphone and method therefor 有权

    公开(公告)号：US10142735B2

    公开(公告)日：2018-11-27

    申请号：US15435598

    申请日：2017-02-17

    Applicant: Jonathan Jan

    Inventor： Jonathan Jan

    IPC: H04R25/00 ,  H04R5/033 ,  H04R1/10 ,  H04R1/28 ,  H04R17/00

    Abstract: A dual mode headphone has a band positioning the dual mode headphone on one of a head or neck of a user. A pair of first housings is provided wherein one of the first housings is formed on each end of the band. A dual mode headphone circuit is provided and has a dual-output acoustic transducer module positioned in each of the pair of first housings. The dual-output acoustic transducer module allowing for both air conduction and bone conduction of sound waves.

Patent Agency Ranking