Abstract: In order to allow the user to see the surrounding area without obstructing the image so that he may use an operation unit or eat and drink while viewing the image while leaving an image viewing device mounted on the head, at least a part of the frame unit of the image viewing device has the property of allowing light of a specific wavelength to pass through it, and a light source for the light of said specific wavelength is mounted on, for example, containers as well as on the operation unit.

Abstract: A receiver including an NTSC rejection filter for eliminating interference signals from a high definition signal. The ratio of the energy of an expected high definition signal to the energy of an NTSC signal is determined. An NTSC signal sequence is generated according to the determined ratio. The number of filter taps is determined, and an autocorrelation matrix of the NTSC signal is calculated using the generated NTSC signal sequence. The power of all interference noise in the output of the NTSC rejection filter is used as a cost function, with respect to the input NTSC interference signal, the additive Gaussian noise and the VSB signal. A filter coefficient equation, for minimizing the cost function, is obtained by differentiation, and then the autocorrelation matrix is substituted for the equation, to calculate coefficients of the NTSC rejection filter.

Abstract: The remote control is constructed and arranged for direct TV operation and includes; a keyboard having keys for selecting a television channel; structure and circuitry for coupling a data storage unit or signal source to said remote control; structure and circuitry for retrieving raw data or a video signal from said data storage unit; and, circuitry for directing signals containing raw data or a video signal to a signal receiving device associated with a television set.

Abstract: An interpolation interval Vdp obtained by the picture sizes of the original picture and the converted picture is cumulated by an adder. In the odd field, a selector selects [0.5] as an offset corresponding to an odd/even field determination signal. In the even field, the selector selects [0] as an offset corresponding to the odd/even field determination signal. In a vertical blanking interval, the offset is selected as an output. Thus, in the odd field, the offset value [0.5] is added to the cumulated value of Vdp. Thereafter, Vdp is cumulated again. Corresponding to the cumulated value, a line read address n and linear interpolating coefficients qn1 and qn2 are obtained. When Vdp is cumulated, offsets corresponding to the scanning start points in the odd field and the even field are added. Thus, the interlace accuracy is kept.

Abstract: A video signal capturing apparatus has a converter unit that converts an input video signal into digital video data and a digital video data writing control unit that controls writing of the digital video data converted by the converter unit in a memory. Thereby, digital video data for an external processing apparatus that uses the digital video data stored in the memory is captured. A separator unit separates a horizontal synchronizing signal from the input video signal. Based on the horizontal synchronizing signal thereby separated, a writing instructing unit instructs that the portion of the digital video data corresponding to an image information transmission be written in the memory. Thereby storage of unnecessary data is avoided in contrast with an apparatus that captures all the data including synchronizing signals.

Abstract: An analog video tagging and encoding system is disclosed. The invention inserts an analog tag frame into the analog video stream such that the luminance (Y) values are made to approach zero, i.e., black, allowing a potential tag frame to be quickly identified. Tag information is then encoded as a structured color pattern into the chrominance (Cb and Cr) portions of the frame, making the tag itself invisible to the casual viewer and contains program start/stop information, program segment identification, or data downloads. The color pattern is chosen such that when it is converted into digital form according to the Moving Picture Experts Group (MPEG) standard. In a simple embodiment of the invention, the structured analog color pattern may appear as a pattern of colored blocks aligned with the macroblock segmentation performed on the analog signal by the MPEG encoding process.

Abstract: A method and apparatus for transparently embedding data into a video signal modulates a particular carrier frequency with a randomized pattern representing the data. The randomized pattern may be a combination of the data with the output from a pseudo-random binary sequence generator, or the data may be converted first into a bi-orthogonal pattern selected from among a plurality of such patterns and then randomized. The resulting modulated carrier frequency is then amplitude modulated based upon a human visual model so that the modulated carrier frequency amplitude is greater in areas of high image complexity and lower in areas of low image complexity. The subliminal data represented by the modulated carrier frequency is added to the video signal.

Abstract: Supplementary grid blanking and spot burn protection are provided in a receiver/monitor (10) by a grid bias control circuit (50) including a blanking signal generator (60) that produces a blanking output signal (S1) devoid of any picture representative component whenever a vertical blanking signal (VB) or a horizontal blanking signal (HB) is present. A capacitor (C1) strips DC from the blanking signal and the resultant signal (S2) is applied to a modulation input (84) of a grid bias generator to produce an output grid bias reference voltage (Vr) modulated by the AC component of the blanking signal. The reference voltage (Vr) is coupled via a spot burn protection circuit (100) and a grid coupling circuit (120) to the control grids of three projection kinescopes (16, 18, 20).

Abstract: A signal treatment circuit treats an input signal containing line sync pulses used for displaying data on a screen. The circuit contains a phase locked loop to control horizontal sweeping according to active edges of line sync pulses, and a filter circuit that filters equalizing signals from the input signals and provides a filtered input signal to the phase locked loop.

Abstract: An automatic channel responsive television input source selection switch couples output signals from a selected one of a plurality of input television input source interface circuits to a television in accordance with a user channel selected with a user channel selector manually controlled through one of a remote control unit and interface and a manual interface. A look-up table memory stores each of the possible user channel numbers along with an associated input signal source channel and an indication of signal source identity, such as indication of a direct broadcast satellite television signal source, a public television broadcast source and a security camera source. The switch based on the associations stored in the look-up memory selects the associated video input signal source and provides an indication of the associated source channel number to a tuner included in the selected interface.

Abstract: An apparatus and a method for receiving television signals can display a television signal of a novel signal format, even at a low cost, without addition of any hardware.

Abstract: Facsimile or other data to be reduced is scanned and segmented into blocks of isolated figures. The figures are compared to stored templates. If no match is found, the figure remains in place. If a match is found, the figure is erased, i.e., the block is reduced to white. When recognized figures have been erased, the residual image is transmitted using an efficient known two-dimensional encoding compression technique. The locations of figures are specified by inserting identifying data in the data stream at a point corresponding a point on the figure, the preferred point being the lower right-hand corner. If not a recognized template, the receiving end can extract the figure constructed from the data stream and store it in its template memory. If a figure is a recognized template, it is extracted from the receiving end's template memory using the identifying data and inserted into the reconstructed residual image.