Abstract: An apparatus is configured to achieve Cpad mitigation effects. The apparatus may include a switch coupled to a current source with first and second states. The apparatus may also include a pad coupled to the switch and having a pad capacitance that charges and discharges based on changes between the first and second switch states. The apparatus may further include a resistor coupled to the switch and the pad, and the resistor is configured to be modulated to reduce the charging or discharging time of the pad.

Abstract: A control device controls a television. The control device includes a touch module. The control device displays a menu containing a number of soft keys on a screen. The soft keys are activated to control the television to carry out corresponding functions. All positions on the menu are associated with all positions on the touch module correspondingly. As a result, a user can select desired soft keys to carry out corresponding functions by viewing the menu on the television and touching the touch module, rather than viewing the touch module.

Abstract: A display apparatus includes a signal input unit through which an image signal is input, the image signal comprising a synchronization signal and an active signal; an adjustment signal generating unit that generates an adjustment signal; a signal processing unit that receives the adjustment signal and adjusts the image signal based on the received adjustment signal; and a controller which analyzes the input signal and controls the adjustment signal generating unit to change characteristics of the adjustment signal if the adjustment signal does not lie within a blanking interval between the synchronization signal and the active signal. With this configuration, even when an image signal having a reduced blanking interval between the synchronization signal and the active signal is input, the adjustment signal can be generated within the blanking interval of the image signal, not within the active signal interval.

Abstract: According to an aspect of the invention, an information processing apparatus configured to be connected to a conversion adaptor having a video input connector and a video output connector, the apparatus including: a video output port complying with the first standard for connection of the video input connector; an image processing module configured to output a first signal when the video input connector is not connected to the video output port, the image processing module being configured to output a second signal when the video input connector is connected to the video output port; and a bias module connected to the video output port and the image processing module and configured to output a third signal to the video output port, the bias module being configured to change physical layer information of the first signal or the second signal.

Abstract: An imaging apparatus includes a solid-state imaging device that outputs a captured image signal in current mode, which in turn is subjected to CDS processing in current mode by a current signal detector, thus suppressing FPN noise. A captured image signal output by the current signal detector is amplified by a programmable gain amplifier to a certain level, and the amplified signal is converted by a current-to-voltage transducer into a voltage signal. In a clamp circuit including a current-output differential amplifier and a current adder, the differential amplifier compares the voltage signal with a reference voltage from a reference voltage source and feeds back a clamp current to the current adder so that the difference between the voltage signal and the reference voltage becomes substantially zero. The current adder is required to simply add a signal current and the clamp current.

Abstract: A circuit for selectively controlling signal baseline and frequency emphasis. An amplifier with selectively controllable feedback circuitry allows higher frequency components of a signal to be emphasized over lower frequency components while also allowing control over the baseline of the signal. Additionally, a multiplexed video signal interface provides a multiplexed component video signal which includes component video signals with OSD data and user-controllable contrast, video gain and signal baseline, along with the ability to individually control such signal components.

Abstract: The invention teaches a method, means and apparatus for clamping a back porch interval of a video signal including clamping a sync-tip level of said video signal to a variable reference voltage, comparing a back-porch voltage level of the sync-tip clamped video signal to a predetermined reference voltage, generating an error signal representative of the difference between the back-porch voltage level and the predetermined reference voltage, and adjusting the variable reference voltage in response to the error signal such that the error signal is minimized.

Abstract: An attention detection system detects a condition of shared attention of plural persons. The system includes plural body language detectors each associated with a different person for detecting body language of the associated person. An analyzer receives body language information from the body language detectors, analyzes the body language of the persons and determines when said body language information indicates shared attention between the persons. The attention detection system generates a signal that captures an image of the shared attention.

Abstract: A method and/or apparatus is capable of performing high accuracy digital level restoration with a high degree of noise immunity provided by a passive clamping stage.

Abstract: A video camera and imaging system having signal processing circuitry configured to change the black level (pedestal) of a video signal in response to comparing an overall system gain (for instance, a gain value and the electronic exposure time of the image sensor) to a threshold value. The change helps to automatically obtain brighter and more detailed images, particularly with imaging systems which are optimized for intraoral (dental) imaging but are also used to capture a headshot of the patent's smile or face.

Abstract: A device to automatically adjust video signals to a blanking level to realize a precise intended color by being fed back with video signals at the blanking level stored in an ASIC (application-specific integrated circuit), which stores video signals at a blanking level received in a flat display panel, and by generating clamp signals so as to realize a blanking level precisely, and a method therefor.

Abstract: Recent circuit concepts inject measurement lines, for cutoff and drive control of the cathode current, into each color channel during the vertical frame blanking period. Owing to the physically dependent exponential beam current characteristic profile as a function of the cathode control voltage VK, the exponent &ggr; of the characteristic profile and the ratio of two cathode components IK1 and IK2 may be used to form control reference values for cutoff and drive control, this process being started in each case from a fixed value of the exponent &ggr; or of the ratio of the two cathode currents IK1 and Ik2. However, it has been found that, if a fixed value is assumed for the exponent &ggr; or for the ratio of the two cathode currents IK1 and IK2, it is not possible to achieve an optimum result for displaying monochrome pictures. Thus, according to the invention, the exponent &ggr; is defined as a function of the color tube 1. The aim in this case is to reduce a &ggr;-dependent DC voltage offset u0f to zero.

Abstract: A backporch soft-clamp circuit using a servo loop clamps the blank or DC level of a composite video signal to a known value without altering the other components of the signal. The values of the components of the composite video signal are determined by determining their amplitude with respect to the blank level. The backporch soft-clamp circuit sets the blank level to a known value for determining the true value of the components. An output composite video signal is generated which represents the input composite video signal with the blank or pedestal level set to a known DC level. Preferably, the DC level is set to two volts. A burst gate pulse representing the presence of a burst signal within the composite video signal is received by the circuit. During the burst period, the circuit soft clamps the blank level of the output signal to the appropriate level without altering the content of the burst signal. The DC level of the output signal is compared to the appropriate level by a comparator circuit.

Abstract: An apparatus having a selectable first mode of operation for clamping an input signal to a first reference level and a selectable second mode of operation for clamping a signal derived from the input signal to a second reference level.

Abstract: A picture information detecting apparatus includes a picture area signal output circuit to detect a picture area excluding black band portions from the input video signal to produce a picture area signal to designate the picture area from which picture information is detected. Also included is a picture information detecting circuit for detecting picture information from the input video signal in the designated area. A picture quality compensating circuit is also provided for compensating the video input signal using the detected picture information to produce the gradation compensated video signal. An EDTV 2 discriminating circuit may also be included to determine if the video input signal is an EDTV 2 signal.

Abstract: A system for automatically editing commercial messages within a television broadcast. Connection of the apparatus to a video system is simplified over the prior art by requiring only one video input connection. The video input of the apparatus can be connected to the video output jack of either a television receiver or a VCR. The apparatus determines the beginning of a commercial message by detecting the absence of video information, above a dynamic bias level, for the duration of two consecutive composite video fields. The end of a commercial message is determined by an intelligent decision making process. This process takes advantage of movement characteristics inherent in video commercial advertisements along with the type of event being recorded. Based on the event type, a dynamically updated run time list is accessed to compare the current commercial run time against high percentage historical run times.

Abstract: The apparatus for displaying a clamp point on a screen includes an input amplifier; a clamp circuit which includes a sync separation circuit and a one shot; and a blanking circuit. The video signal is applied to the clamp circuit via the input amplifier and the output signal therefrom is applied to the blanking circuit to be modulated with respect to its brightness. Thus, the brightness-modulated clamp point is readily located on a screen of, for example, an oscilloscope.

Abstract: Control circuits for the cut-off and drive control of video equipment. A first control device includes a cut-off control circuit and drive control circuit for use in conventional modes. A second control device includes a cut-off control circuit for mode switching and a drive control circuit for mode switching, independent of the first control device. The cut-off and drive adjustments made for every mode switching operation are unnecessary, and the mode switching based on off set data is possible.

Abstract: A television (TV) signal alignment method and device are disclosed which provide a clear TV picture. The alignment method provides reduced noise. Despite transmission noise, the alignment method reduces noise at frequencies lower than 15 kHz which is generated by the alignment device, to below the visual perception threshold. This improves signal-to-noise ratio. The alignment method and device reduce this noise while rejecting 50 Hz and 25 Hz frequencies of greater than 30 dB. At each line of an image, the alignment method and device use a feedback loop to successively align a plateau at a first start of the current line of a television signal, which has transmission noise superimposed thereon, on the plateau of the preceding line. This is performed to restore the DC component of the television signal.

Abstract: A synchronizing signal clamping circuit for an integrated image signal processing circuit has an input buffer circuit for receiving a composite image signal; a level clamping circuit for clamping a synchronizing signal tip level of the composite image signal, in response to an error detecting signal; an error detecting circuit for detecting the difference between a reference voltage signal and the output synchronizing signal tip level of the composite image signal and for outputting the result as the error detecting signal, in response to a control signal; and a synchronizing signal interval distributor circuit which controls the error detecting circuit so that the error detecting circuit can detect the difference between said reference voltage signal and the synchronizing signal tip level of the composite image signal only for a period shorter than the interval of a synchronizing signal applied to a third input terminal.

Abstract: An automatic knee control circuit including a knee circuit for setting a knee point and a knee slope, a detecting circuit for detecting an output signal of the knee circuit and a comparing circuit for comparing an output of the detecting circuit with a reference voltage, wherein the knee circuit is controlled on the basis of an output of the comparing circuit. This automatic knee control circuit is characterized by a distributing circuit for distributing the output of the comparing circuit by an arbitrary distributing ratio, wherein the setting of the knee point is controlled by a first distributed output and the setting of the knee slope is controlled by a second distributed output, thereby making it possible to set a wide variety of signal processing states with ease. Therefore, pictures corresponding to cameraman's intention can be produced.

Abstract: An image signal processing apparatus wherein the black level of an analog image signal is adjusted by controlling the clamp level of the inputted analog image signal. The clamped analog image signal is digitalized. Using the digital image signal offset to a first level during the blanking period, the black level adjustment of the analog image signal is carried out. The first level during the blanking period of the digital image signal corresponding to the analog image signal with the black level having been adjusted, is changed to a second level, allowing a correct and easy black level adjustment using a simple circuit arrangement.