Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| RE40412 | Synchronizing signal separating apparatus and method The present invention provides a synchronizing signal separation. In accordance with the present invention, a sync pulse processing circuitry slices a video signal and senses the peaks of the synchronizing pulse. A reference generating circuitry divides the output f... | 07/01/2008 |
| RE40411 | Synchronizing signal separating apparatus and method This invention is a method and apparatus for identifying and separating the synchronizing signal component of video like signals by identifying or detecting the arrangement or sequence of the known occurances of events or patterns of the sync. The invention also pro... | 07/01/2008 |
| RE40396 | Method for detecting and separating vertical and horizonal synchronous signals from computer system A method for detecting and separating vertical and horizontal synchronous signals from a computer system. The input forms of the vertical and horizontal synchronous signals from the computer system are detected by scanning a vertical synchronous signal terminal, a h... | 06/24/2008 |
| 7349032 | Circuit to resize and enlarge an image signal and resizing and enlargement method for an image signal The invention provides an image processing circuit having a capability of performing a reduction (resizing) process and an enlargement process on horizontal-scanning-line data inputted in synchronization with an input horizontal synchronization signal, and subsequen... | 03/25/2008 |
| 7239355 | Method of frame synchronization when scaling video and video scaling apparatus thereof A video scaling apparatus includes a receiver for receiving incoming video signals having transmitted therein a plurality of incoming frames, each incoming frame having a first plurality of synchronization signals for indicating lines in the incoming frame; a scaler... | 07/03/2007 |
| 7199533 | Convergence control apparatus for video display A convergence control apparatus for a video display is provided. In the apparatus, a convergence controller receives a vertical synchronization signal and a horizontal synchronization signal and then outputs a vertical convergence correction voltage and a horizontal... | 04/03/2007 |
| 7176979 | Synchronization pulse detection circuit A synchronization pulse detector includes an absolute value independent shape detector for processing samples of an input signal having a synchronization pulse and a plurality of non-synchronization pulses to determine whether such samples have a predetermined seque... | 02/13/2007 |
| 7050111 | Process and device for synchronizing a reference signal with respect to a video signal A synchronization process may include detecting successive horizontal synchronization pulses of a video signal, and a phase comparison between the successive detected pulses and the successive transitions of the reference signal for controlling the oscillator of the... | 05/23/2006 |
| 6998886 | Apparatus and method for PLL with equalizing pulse removal A phase-locked loop circuit is arranged for equalizing pulse removal. The phase-locked loop circuit includes a multi-phase pulse generator circuit that is arranged to provide a feedback signal and a gate signal from an output of a voltage-controlled oscillation circ... | 02/14/2006 |
| 6977692 | Alternative video sync detector A circuit for generating video synchronization timing signals includes a negative peak detector (FIG. 5) for following variations of a composite video signal (FIG. 1), rather than clamping the most negative voltage of the composite video signal. The ne... | 12/20/2005 |
| 6967694 | Demodulator for demodulating digital broadcast signals To present a digital broadcast demodulator, in a demodulator of digital terrestrial wave broadcast for transmitting coded digital video and audio information in a packet form, capable of detecting packet synchronism stably and precisely, controlling the AGC, and pro... | 11/22/2005 |
| 6947060 | Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance... | 09/20/2005 |
| 6882360 | Method and apparatus for determining a level of a video signal A method for estimating a level of a predetermined portion of a video signal comprising the steps of determining a location of the predetermined portion of the video signal, sampling the video signal during the predetermined portion and estimating the level as an av... | 04/19/2005 |
| 6870569 | Integrated multilevel signal demultiplexor An integrated circuit with a signal demultiplexor for separating out two signals of different magnitudes from within a multiplexed signal without requiring a large capacitance for signal filtering. A multiple-threshold input comparator stage separates the multiplexe... | 03/22/2005 |
| 6559891 | Method and apparatus to generate tri-level HDTV synchronization pulses An ITU-R BT.656 (or similar) digital video signal is converted to analog at which point a simple 7-state state machine in combination with a 6 bit binary counter generates tri-level synchronized video. The state machine receives vertical and horizontal sy... | 05/06/2003 |
| 6456332 | Device for generating sync signals of composite video signal A device which generates horizontal and vertical sync signals of a composite signal to create a soft picture on a display monitor by preventing a free running effect of a composite signal which is caused by a mode conversion between recorded and unrecorde... | 09/24/2002 |
| 6392708 | Horizontal display size compensation circuit for a monitor A horizontal display size compensation circuit for a monitor prevents a horizontal display size of a monitor screen from being changed when a horizontal frequency varies according to a video mode. A horizontal frequency is generated by a horizontal freque... | 05/21/2002 |
| 6380980 | Method and apparatus for recovering video color subcarrier signal An embodiment of the present invention provides a signal generator for generating a signal with a predetermined frequency. The signal generator includes a first comparator for generating a first error signal and a second comparator for generating a second... | 04/30/2002 |
| 6369856 | Synchronous signal detection circuit and method A synchronous signal detection circuit which detect a vertical synchronous signal and a horizontal synchronous signal from composite synchronous signal, including: a reset generation means for receiving an external composite synchronous signal and an exte... | 04/09/2002 |
| 6271889 | Synchronization pulse detection circuit A synchronization pulse detector for detecting a synchronization pulse within an input signal. The input signal has "level" portions (i.e., substantially non-time varying portions) and "transition" portions (i.e., substantially time varying portions). The... | 08/07/2001 |
| 6226044 | Field synchronization system and technique A field synchronization system of a field detect circuit adaptable for use with non-standard output digital data of forward looking infrared (FLIR) sensors. Timing signals and digital data from a FLIR sensor are utilized and there is outputted a vertical ... | 05/01/2001 |
| 6130719 | Method and apparatus for accurately recovering the synchronization signals contained in composite video signals A method of recovering synchronization signals contained in a composite video signal. The synchronization signals are generally represented by voltage levels less than the blanking level of the video signal, and display data is represented by blanking lev... | 10/10/2000 |
| 6097440 | Synchronous processing device A synchronous control device is disclosed which is capable of obtaining stable synchronization regardless of the kind of image source even when the automatic synchronous control circuit cannot operate in the normal manner. The device includes a phase comp... | 08/01/2000 |
| 6069667 | Synchronizing signal detecting device In a Sync signal detection circuit for detecting a Sync signal included in a television signal transmitted in a digital mode, pattern check means 2 checks a pattern of a Sync signal which is super imposed on a series of input data with a reference pattern... | 05/30/2000 |
| 6064443 | Method for detecting and separating vertical and horizontal synchronous signals from computer system A method for detecting and separating vertical and horizontal synchronous signals from a computer system. The input forms of the vertical and horizontal synchronous signals from the computer system are detected by scanning a vertical synchronous signal te... | 05/16/2000 |
| 5835154 | Circuit arrangement for deriving pulses of horizontal and vertical frequency A circuit arrangement for deriving horizontal frequency and vertical frequency pulses from a synchronizing signal, in which all clocked components are provided with the same clock during the digital processing of the synchronizing signal. Too derive the h... | 11/10/1998 |
| 5818538 | Sync on green signal separating circuit of an image output apparatus A sync signal separating circuit of an image output apparatus includes an inversion amplifying section for providing a green video signal supplied from a video signal generator to be output as an output signal that is inverted and amplified, and a clipper... | 10/06/1998 |
| 5774185 | Method of and apparatus for removing equalizing pulses without using external pins A circuit for removing every other equalizing pulse from a signal representing the sync pulses of a composite video signal, generates an output signal representative of every horizontal synchronization pulse and every other vertical synchronization pulse ... | 06/30/1998 |
| 5485220 | Sync stripper circuit A sync stripper circuit receives from a medical imaging modality a composite video signal with a horizontal sync frequency within one of first, second, third or fourth frequency ranges. The sync stripper circuit includes a circuit for stripping the compos... | 01/16/1996 |
| 5469220 | Vertical synchronizing circuit A vertical sync signal circuit for producing a stable sync signal is disclosed. A first frequency divider and a first window circuit generate a sync output pulse PC having the same period as the vertical sync signal contained in the TV signal and a first ... | 11/21/1995 |
| 5432559 | Self-adjusting window circuit with timing control A self-adjusting window circuit suitable for fabrication as a monolithic integrated circuit. The self-adjusting window circuit comprises an input port, a positive edge detector coupled to the input port, a latch coupled to the output of the edge detector ... | 07/11/1995 |
| 5420640 | Memory efficient method and apparatus for sync detection A receiver is provided for receiving a digital data stream over a communication path. The digital data is arranged as a sequence of frames, each frame including a plurality of lines of data. The beginning of each frame is indicated by a frame synchronizat... | 05/30/1995 |
| 5414470 | Sync signal generator for generating a second sync signal synchronized with a first sync signal A sync signal generator of a television receiver for use in a vehicle has a phase reset detector for gradually absorbing a phase fluctuation of an input sync signal which occurs due to a ghost phenomenon or a fading phenomenon and reducing a phase fluctua... | 05/09/1995 |
| 5351093 | Phase alternating line video signal processing apparatus Signal processing apparatus comprises a chrominance subsampler (10) for sampling the U and V components of a PAL video signal in response to an enable signal. A counter (30) responsive to the horizontal synchronization component of the PAL video signal ge... | 09/27/1994 |
| 5309236 | Video signal processing circuit of a broadcasting system A single chip video signal processing circuit capable of performing a sync separation and odd/even field detection using an NTSC mode or a PAL mode video signal, the video signal processing circuit includes a sync signal separator for separating the input... | 05/03/1994 |
| 5189515 | Television synchronization signal separator A television synchronization signal separator for a composite synchronizating signal, in which the horizontal synchronizing signal and the vertical synchronizing signals are derived and free from the interference of the equalization signals and noise duri... | 02/23/1993 |
| 5144432 | Synchronizing circuit for an image pickup system The horizontal synchronous signal and the vertical synchronous signal included in a composite synchronous signal which is output from one TV camera are separated from the composite synchronous signal. A plurality of TV cameras are controlled on the basis ... | 09/01/1992 |
| 5097334 | Synchronizing signal separator A synchronizing signal separator in the circuit of a monitor selects between a composite synchronizing signal and a separate synchronizing signal under the control of a priority order stage, and it separates a composite synchronizing signal into a vertica... | 03/17/1992 |
| 4999708 | Synchronous separation circuit A synchronous separation circuit used in a television video circuit for generating a horizontal synchronizing signal and a vertical synchronizing signal from a composite synchronizing signal has: a unit for generating a clock signal used as a reference si... | 03/12/1991 |
| 4970592 | Horizontal synchronization, clock synchronization, D.C. restoration and gain control scheme for an analog TV system An analog TV system includes a transmitter which produces a horizontal unique pulse sequence during each horizontal blanking interval. The pulse sequence is amplitude modulated between two levels to define a horizontal unique word for horizontal synchroni... | 11/13/1990 |
