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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7791504 | Rotary encoder and method of manufacturing the same A rotary encoder includes a case made of insulating resin, a rotatable operation shaft, a slidable brush fixed to the operation shaft, and a signal contact embedded in a surface of the case. The slidable brush has a contacting section slidable on a surface of the ca... | 09/07/2010 |
| 7339448 | Water resistant encoding material A cured magnetizable admixture of elastomeric thermoplastic, dispersed magnetizable particulate, and optional dispersed hydrophobic material (such as ethylene acrylic monomer rubber or ethylene-vinyl acetate copolymer) provides elastic elongation of not less than ab... | 03/04/2008 |
| 7259695 | Low-profile multi-turn encoder systems and methods Various alternative embodiments of a multi-turn capacitive encoder device are disclosed. The device includes two members that are fixed relative to each other and that include respective capacitive electrodes that are capacitively coupled between the two members. Th... | 08/21/2007 |
| 7238902 | Slider The present invention provides a slider which is less likely to cause a drastic change in a contact state such as instantaneous disconnection. The slider according to the present invention has teeth 13 of a comb shaped like a narrow sheet being rectangular in... | 07/03/2007 |
| 7233262 | Magnetizing jig A magnetizing jig used in cooperation with a magnetizing yoke formed with a circular magnetizing face, for fixing a ring-like magnetic encoder base plate to be magnetized thereto and magnetizing it by exciting a multi-pole magnetizing coil provided on the magnetizin... | 06/19/2007 |
| 7230230 | Apparatus for adjusting a signal and prohibiting adjustment of the signal based on a position of a movable member A signal adjusting apparatus includes a movable member, a setting device, and a prohibiting device. The movable member is movable in a movable range to have the electrical signal adjusted in accordance with a position of the movable member. The setting device sets a... | 06/12/2007 |
| 7227479 | Digital background calibration for time-interlaced analog-to-digital converters The present invention provides for background calibration of a time-interleaved analog-to-digital converter (TIADC). In one embodiment, a background calibrator includes a TIADC having a parallel array of time-interleaved main signal processors, each main signal proc... | 06/05/2007 |
| 7183538 | Apparatus for adjusting a signal based on a position of a movable member A signal adjusting apparatus comprises a movable member, a first detecting device, a second detecting device, and a correction device. The member is movable in a movable range composed of a plurality of intervals. The first detecting device detects one of the interv... | 02/27/2007 |
| 7091883 | Absolute position encoder A transducer, a method and a coding pattern for determining a kinematic measurable variable are disclosed. A transducer comprises a first device part which is moveable in or through a corresponding device for oil or natural gas production and a second device part wh... | 08/15/2006 |
| 7015832 | Pulse width modulation based digital incremental encoder A digital incremental encoder for generating an output signal indicative of an angular position, a direction of rotation, and a speed of rotation of a shaft. A counter receives a PWM signal indicative of the angular position of the shaft and a clock signal from an a... | 03/21/2006 |
| 6987465 | Procedure for the determination of an absolute position A procedure for determining an absolute position of an object, which includes scanning a code pattern from a series of code patterns, wherein each code pattern of said series of code patterns unambiguously defines one absolute position and comprises a plurality of c... | 01/17/2006 |
| 6975249 | Rotary electronic component and method of manufacturing same Rotary electronic component of the invention has a contact board and an elastic contact. The contact board, including an annular contact having an arc-segmental portion split by a slit with a predetermined width and signaling contacts disposed at spaced positions an... | 12/13/2005 |
| 6946979 | Encoder having electrode pattern with pairs of non-conductive portions and multiple sliders that contact the electrode pattern An encoder includes a rotary member having a predetermined electrode pattern and a fixed member having multiple channel contacts which are opposed to the electrode. The rotary member has stable reference phases where at most one pair of the contacts is ON (in electr... | 09/20/2005 |
| 6922353 | Memory for storing information A memory apparatus has a plurality of first electrodes and at least one second electrode separated by an electrolyte solution. Information may be recorded by causing an electrical current to flow between a selected of the first electrodes and the second electrode to... | 07/26/2005 |
| 6856260 | Signal controller A compact low profile fader has an elongate support and a manually settable slider mounted for linearly slidable relative to the elongate support. A drive transmission operably interconnecting the slider and a digital encoder so that movement of the slider produces ... | 02/15/2005 |
| 6856261 | Rotary encoder A rotary encoder has housing case provided with common electrode and signal electrode disposed to an area narrower than the entire circumference, or an angular range of generally ½ of the circumference in concentrical with central hole of housing case, and sliding ... | 02/15/2005 |
| 6768427 | Encoder initialization methods and related systems In one aspect, in a device such as a printer, an encoder system method initializes the system to produce analog output signals that fall outside the detection range of an A/D converter of the system. In another aspect, in a device such as a printer, an encoder syste... | 07/27/2004 |
| 6708126 | Method and system for measuring current A current sensing system including a carrier strip, the carrier strip disposed so as to be associated with a current carrying conductor, wherein when an electrical current flows through the conductor, the electrical current flowing through the conductor creates a ma... | 03/16/2004 |
| 6683545 | Multiturn rotary encoder with detector devices on a shared side of a printed circuit board In a multiturn rotary encoder, a first code disk is arranged with an input shaft for detecting the angular position of the input shaft within one rotation. To detect the number of rotations of the input shaft, a multiturn part is provided with further cod... | 01/27/2004 |
| 6661354 | Potentiometer with embedded signal circuitry A potentiometer and logic circuitry attached to a common substrate. In one aspect the potentiometer and logic circuitry is an integrated potentiometer mounted on an upper surface of a circuit board with circuitry on a lower surface of the circuit board. T... | 12/09/2003 |
| 6552671 | Brush encoder with resilient contact strips A brush encoder includes a coding-plate support member, to which a coding plate is fixed, and a brush support member, to which a brush is fixed, the brush having a base portion and resilient contact strips. The brush support member includes a support surf... | 04/22/2003 |
| 6542089 | Rear mounted integrated rotary encoder A rear-mount integrated rotary encoder comprises a mechanical portion and a printed circuit board portion. The mechanical portion of a rear mount integrated rotary encoder comprises a housing including a bushing for receiving one end of a rotatable. The r... | 04/01/2003 |
| 6542088 | Multiturn rotary encoder with multiple code carriers coupled by a reduction gear A multi-turn rotary encoder that includes a first code carrier connected with an input shaft, a scanning device that scans the first code carrier and generates an absolute position of the input shaft within one revolution, and a digital code word is prese... | 04/01/2003 |
| 6507292 | Positional encoder assembly A positional encoder assembly including a positional encoder, an interface unit releasably connectable with the positional encoder for connecting the positional encoder with a data bus, and connection elements providing for connection of the interface uni... | 01/14/2003 |
| 6462677 | Encoder with embedded signal circuitry An integrated digital electronic encoder that converts mechanical movement of a device input into a signal that can be applied to particular purposes is described. The encoder and associated signal conditioning and processing circuitry are embedded togeth... | 10/08/2002 |
| 6396419 | Volume control knob for use with a laptop computer A volume control knob for use with a laptop computer uses the engagement between the springs and the connecting plates to generate different messages. The messages will then be transmitted to the chip received in the secondary control device. With the mes... | 05/28/2002 |
| 6351232 | Electrical appliance with parameterable function at reduced cost An electrical apparatus having at least one parametrizable function and which includes at least one potentiometer having an actuation member, cooperating with notched indexation devices demarcating several discrete positions of the actuation member. Each ... | 02/26/2002 |
| 6326905 | Coded rotary switch with contacts at common radius A rotary switch includes a plurality of first electrical contacts disposed at a common radius and a plurality of second electrical contacts mounted for rotation against said first electrical contacts at said common radius. The first electrical contacts in... | 12/04/2001 |
| 6271770 | Mechanical coder The present invention relates to a mechanical coder. The mechanical coder includes a gear-shaped and conductive signal-separating wheel having a plurality of recesses. Each of the recesses of the signal-separating wheel is filled with insulating material ... | 08/07/2001 |
| 5949344 | Position sensor A position sensor including a rotational shaft (7), a plurality of brushes (13, 15, 17, 19) supported by the rotational shaft (7), a housing (3), a printed circuit board (21) fixed to the housing (3), a main conductor (M) provided on the printed circuit b... | 09/07/1999 |
| 5818358 | Device for detecting position of moving body A device for detecting a position of a moving body is provided in which a position of a moving body such as a window glass of a power window device can be detected with high accuracy, initial positions can be set without complicated adjustment, such can b... | 10/06/1998 |
| 5815094 | Position detecting device A position detecting device comprises a pattern member having conductive patterns arranged in plural tracks; a slidable member having plural sliding pieces capable of sliding on the conductive patterns, wherein each of the sliding pieces assumes either a ... | 09/29/1998 |
| 5790909 | Pulse generator having simplified conductor arrangement A pulse generator includes a code plate which is provided with a plurality of grounding land portions and a plurality of pulse generating land portions having a potential different from a potential of the grounding land portions, arranged in a direction o... | 08/04/1998 |
| 5751230 | Digital input and control device An absolute position encoder converts absolute mechanical position to a digital output value. A single-track, rotary embodiment of the encoder includes several conductive pick-up segments that are symmetrically arranged along a circular pick-up track, wit... | 05/12/1998 |
| 5748112 | Position recognition arrangement for a selector lever in motor vehicles A position recognition arrangement for a selector lever in motor vehicles, in which a separate recognition switch is assigned to every valid and selectable position. The recognition switches are actuated simultaneously in a transition area from one positi... | 05/05/1998 |
| 5739775 | Digital input and control device An absolute position encoder converts absolute mechanical position to a digital output value. A single-track, rotary embodiment of the encoder includes several conductive pick-up segments that are symmetrically arranged along a circular pick-up track, wit... | 04/14/1998 |
| 5712574 | Apparatus for position detection and verification thereof using pulse patterns having sequentially unique properties An apparatus for position detection using signal patterns created by use of a fixed disk having three conductive patterns disposed thereon. The first and second patterns are annular conductive paths which are concentric with respect to one another and the... | 01/27/1998 |
| 5686911 | Contact type rotary encoder employing electrically conductive balls as switching contacts for printed circuit electrodes A contact type rotary encoder, comprising a printed wiring board having annular comb-shaped electrodes, and an arcuate electrode printed thereon, and a rotary member having three through-holes positioned around the center thereof at substantially equal an... | 11/11/1997 |
| 5408286 | Signal generating device with selective pattern reading A signal generating device has a pattern carrying unit with separated or connected patterns. Contact members of a signal reader make contact with the patterns and one of the patterns is selected for reading by a selector.... | 04/18/1995 |
| 5350955 | Apparatus for position detection and verification thereof using pulse patterns having sequentially unique properties An apparatus for position detection using pulse patterns created by use of a fixed disk having three conductive patterns disposed thereon. The first and second patterns are annular conductive paths which are coaxial with respect to one another and the thi... | 09/27/1994 |
