Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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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 |
| 7358799 | Switchable high pass configuration and an optical receiver with a switchable high pass configuration The invention relates to a switchable high-pass filter arrangement which has a lower limiting frequency determining the high-pass filter behavior. The arrangement includes a transistor circuit, which has at least one transistor in a common-gate or common-base connec... | 04/15/2008 |
| 7274406 | Equilibrium based vertical sync phase lock loop for video decoder The present invention discloses a PLL (90), which may be implemented in software, hardware, or a combination of software and hardware, which comprises a sync detector (92) adapted to output a phase error (152), a vertical sync discrete time osci... | 09/25/2007 |
| 7253844 | Method and arrangement for synchronising on-screen display functions during analog signal reception A method and an arrangement are disclosed for synchronizing on-screen display functions during analog signal reception in a terminal arrangement that is capable of receiving both digital and analog video signals. There are provided means (312, 313) for genera... | 08/07/2007 |
| 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 |
| 7148826 | Data input circuit and semiconductor device utilizing data input circuit A data input circuit converts input serial data to n-bit parallel data, and outputs the n-bit parallel data by following an address signal. The data input circuit includes a data shifting unit including a plurality of columns, and sequentially shifting the input ser... | 12/12/2006 |
| 7046301 | Vertical synchronous signal detection circuit A vertical synchronous signal detection circuit includes an analog-digital converter, an average calculation circuit and a compare circuit. The analog-digital converter receives a composite video signal and converts the video signal into a digital signal having a ve... | 05/16/2006 |
| 7009661 | Video signal detecting circuit for adjusting sync signals with a mean difference of the number of pixels from a standard A video signal detecting circuit includes a synchronization detector for detecting a vertical synchronous signal in an input video signal. A counter starts counting pixel clock pulses in response to every vertical synchronous signal thus detected, and outputs a firs... | 03/07/2006 |
| 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 |
| 6967687 | Display control apparatus and method A display control apparatus and a display control method are provided in which a resolution of an input image signal is judged, a change in the image signal is detected, and the image signal is adaptatively interpolated in accordance with the judgement and detection... | 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 |
| 6909428 | Signal converter device The present invention provides a device for signal transfer, which outputs a treatment signal relating to a vertical-horizontal composite sync signal of a monitor and an integrated signal of the vertical-horizontal composite sync signal. There is a plurality of logi... | 06/21/2005 |
| 6891572 | Video signal conversion processing apparatus and method A signal processing apparatus and method for up or down conversion of an interlace signal with a high degree of accuracy. The frequency of a write system clock supplied from a PLL circuit is divided by N by a dividing circuit and then multiplied by M by a multiplyin... | 05/10/2005 |
| 6885703 | Video code processing method, which can generate continuous moving pictures A video code processing method includes (a), (b), (c) and (d). The (a) step includes providing a first original bit stream including a video code which is a digitized video signal. The (b) step includes generating a second original bit stream at a first timing by de... | 04/26/2005 |
| 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 |
| 6563545 | Synchronous processing circuit With the present invention, a synchronous processor circuit can be implemented with a simplified circuit by improving a display's synchronization stability, and by setting a pulse width of a vertical synchronizing signal to be integral multiple of the hor... | 05/13/2003 |
| 6545721 | Video retiming through dynamic FIFO sizing A method and apparatus for retiming video. Vertical synchronization information (VSI) is detected in an incoming video stream. A VSI is also detected in both as output video stream and a reference video stream. Based on the difference between the VSI of t... | 04/08/2003 |
| 6424379 | Vertical synchronization separation circuit A vertical synchronization separation circuit eliminates distortion in a television picture produced when the synchronization signal is complex and includes a copy guard signal.... | 07/23/2002 |
| 6259485 | Sync separating circuit A level is preset into a counter. The level held in the counter is compared with the minimum value of the present video signal by a level detecting circuit. When the minimum value of the present video signal is lower than the level of the counter, the int... | 07/10/2001 |
| 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 |
| 6072534 | Device for the subdivision of the period of a signal into N quasi-equal parts The period of an input signal is subdivided into N parts by carrying out a count, during this period, of the pulses delivered by a clock. This number is divided by N and then the remainder of this division is distributed among all the N parts of the perio... | 06/06/2000 |
| 6055022 | Apparatus and method for maintaining synchronism between a picture signal and a matrix scanned array A monolithically integratable display apparatus for receiving a picture signal having frames of video information and horizontal and vertical synchronizing components includes a matrix of display cells arranged in an array of M rows by N columns. Display ... | 04/25/2000 |
| 5995158 | Blanking signal generating control circuit of a video apparatus A blanking signal generating control circuit for use in a video apparatus is disclosed. The blanking signal control circuit according to the present invention has structure which makes it easily adaptable for use with different broadcast standards, such a... | 11/30/1999 |
| 5953069 | Sync separator circuit Sync separator and video detector circuits, including a sync tip clamp having symmetrical and non-symmetrical clamps. The symmetrical clamp clamps the input video signal to a reference voltage during composite sync pulses, so the coupling capacitor discha... | 09/14/1999 |
| 5953070 | Digital pulse filtering circuit A digital pulse filtering circuit for processing composite sync signals is provided. The digital pulse filtering circuit can determine the polarity of an input composite sync signal composed of a horizontal sync signal and a vertical sync signal. The hori... | 09/14/1999 |
| 5917551 | Synchronization stabilizing circuit and television signal receiver In a synchronization stabilizing circuit and a television signal receiver, the follow-up range (TX) of the synchronizing signal (SH) is changed based on the judged result (J1) that it is judged whether or not the synchronizing signal (SH) itself exists an... | 06/29/1999 |
| 5844626 | HDTV compatible vertical sync separator A vertical sync separator circuit that operates with signals that have different arrangements of horizontal equalizing pulses in the vertical interval. The composite signal is integrated and used to operate a Schmidt trigger/inverter that feeds the data i... | 12/01/1998 |
| 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 |
| 5831682 | Vertical synchronizing signal stabilizing circuit, integrated circuit and television signal processing device In a vertical synchronizing signal stabilizing circuit, an integrated circuit and a television signal processing device, a vertical synchronizing signal of which period is stabilized can be output with a small number of elements and a simple constitution,... | 11/03/1998 |
| 5805232 | Vertical sync signal separator circuit and multi-sync monitor using the same The present invention includes a capacitor, a charge/discharge circuit for generating a charging current having a value increasing with the increase of the frequency of the horizontal sync signal to charge the capacitor in a time period of the horizontal ... | 09/08/1998 |
| 5790112 | Oscillation and trigger circuit for vertical synchronizing signal An oscillation and trigger circuit for a vertical synchronizing signal in a display apparatus, the oscillation and trigger circuit comprising: a pulse generator for generating a single pulse for each active cycle of the vertical synchronizing signal; a fi... | 08/04/1998 |
| 5784121 | Vertical synchronisation signal detector A vertical synchronization signal detector for detecting a vertical synchronization signal in a composite video signal. The detector comprises an input (1) for receiving the composite video signal, a first detector (4,16,22) for detecting equalization pul... | 07/21/1998 |
| 5754251 | Digital video vertical synchronization pulse detector A digital video vertical synchronization pulse detector for detecting a vertical synchronization pulse in a video signal is disclosed. The digital video vertical synchronization pulse detector includes a threshold device for comparing a first digital data... | 05/19/1998 |
| 5689308 | Vertical reset genereator circuit A vertical reset generator monitors a composite video signal and generates a vertical reset pulse which is active during the presence of serration pulses within the composite video signal. The synchronization pulses within the input composite video signal... | 11/18/1997 |
| 5631709 | Method and apparatus for processing a composite synchronizing signal A pulse separator 110 predicts the start of a vertical synchronizing pulse in a video composite synchronizing signal (VCSS) applied via input 105. At a predicted time, the pulse separator 110 provides a start signal via a first output to the bistable 125,... | 05/20/1997 |
| 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 |
| 5467140 | Vertical synchronous signal separation apparatus A vertical synchronous signal separation circuit is disclosed wherein the circuit includes a vertical synchronous pulse removal circuit for delaying original horizontal and vertical synchronous signals separated from a composite video signal by a predeter... | 11/14/1995 |
