Abstract: A pattern discriminating apparatus with an interval integrating section for integrating detection signals from a detecting section for each of a number of intervals of a bill. A bill is supplied to the detecting section which detects, for example, a magnetism pattern of the bill. The detection signal from the detecting section is supplied to the interval integrating section as well as to a total integrating section. The total integrating section integrates the detection signals for one bill. The signals from the interval integrating section are temporarily stored in a memory section, are supplied to a smoothing section, and are smoothed thereby. The smoothed signal is supplied to normalizing section to be normalized based on the signal supplied from the total integrating section. The normalized signal and a signal output from a pattern memory section are supplied to a subtracting section for taking the difference between these two signals for each of the intervals.

Abstract: A color video signal reproducing apparatus responds to either PAL or SECAM signals by separating a carrier chrominance signal and a luminance signal from a color video signal which is reproduced from a recording medium. The separated carrier chrominance signal is demodulated into two color difference signals. An oscillator supplies a predetermined frequency signal to the demodulators. The output frequency of the oscillator is controlled in response to a jitter component in the carrier chrominance signal. The phases of a reference signal and of a horizontal synchronizing signal are compared to produce a reference signal which is phase shifted by 180 degrees. A switching circuit operates every one horizontal scanning period in response to the reference signal. A modulating circuit responds to the reference signal and to a signal from the switching circuit by modulating them with the color difference signal. The output color video signal is produced in response thereto.

Abstract: The present invention relates to a compatible high-definition television (CHDTV) color picture signal which is capable of conversion by simple and inexpensive means into either a HDTV composite color picture signal for use by a HDTV receiver or an associated conventional television system (ACTS) color picture signal for use by an ACTS receiver. The present CHDTV color picture signal comprises (a) a first line scan rate which is the same as that of the ACTS signal, (b) a first line signal of a HDTV camera signal produced at a second line scan rate which is time stretched and transmitted as is at the first line scan rate in a first portion of the CHDTV signal bandwidth, and (c) a second line signal of the HDTV camera signal which is time streched and transmitted as a line differential signal on a vestigial sideband carrier signal in a second portion of the HDTV signal bandwidth.

Abstract: Circuitry included in a TV receiver for enhancing the signal-to-noise ratio of the chrominance signal includes an adaptive linear phase, low pass filter which has its bandwidth controlled responsive to the upper frequency components of the current chrominance signal. A frequency analyzer coupled to the chrominance channel counts the number of chrominance signal excursions during predetermined periods to generate a number related to the maximum signal frequency during such periods. The number is applied to a decoder which generates address codes for application to a look up table which provides filter coefficients for altering the filter bandwidth in accordance with the current maximum signal frequency components.

Abstract: A method for varying colors of a picture image, displayed in a color display, for reproducing a color printed matter, in which density signals of cyan, magenta, yellow and black, picked up from an original picture are fed to a color display to display a color picture image corresponding to the color printed matter to be obtained is disclosed. Color ink signals of cyan, magenta and yellow for recording a color printed matter are converted into color separation density signals of red, green and blue by using the first table memories, and then the converted color separation density signals are added one by one. Then, correction values for printing the color inks one above another, read out of the second table memories depending on the color ink signals, are added to the added color separation density signals. A correction value for printing the black ink upon the other color inks, read out of the third table memory depending on the black and the color ink signals, may be added to thus the obtained signal.

Abstract: A recording system converts standard binary signals into new binary signals that have mostly zeroes occurring in words that are physically unrealizable. Thus when NRZ-I recording is used, long strings of zeroes (which have no transitions in them for easy detection) do not actually occur. Ones do have transitions in them for easy detection, and thus a long string of ones causes no detection problem. The physically unrealizable combinations occur due to the partial correlations of signals, such as Y, B-Y, and R-Y color signals.

Abstract: A television signal receiving apparatus having a first input for receiving a composite video signal and a second input for receiving a direct-drive RGB signal includes an electronic switching circuit for automatically switching between composite video and RGB modes of operation. The switching circuit is responsive to the presence of the sync component of an RGB signal at the second input for automatically establishing the RGB mode of operation wherein only the input RGB signal is used to form the image display and is responsive to the absence of the sync component of the RGB signal at the second input for establishing the composite video mode of operation wherein the composite video signal at the first input is used to form the image display. Provisions are included for developing an override signal for allowing the development of a mixed mode image display.

Abstract: A saturation and contrast adjusting circuit for a color television receiver set comprises a chroma processing circuit branched off from a contrast adjusting circuit connected to a video detector circuit of the color television receiver set. A control signal of the contrast adjusting circuit is released during the burst period to enable the contrast and saturation adjustment to be carried out by such control signal. The saturation and contrast can be adjusted by a single gain adjusting circuit and the respective control characteristic curves of the contrast adjusting circuit and the chroma processing circuit can be brought into coincidence with each other.

Abstract: A system for processing data used by a recognition system in recognizing an unknown character. A multi-channel read member generates a plurality of parallel rows of data bits which taken together form an image of the character to be recognized. In order to align the rows of data in their proper relationship, each row of data bits is examined to determine if the row contains data representing a feature characteristic of the unknown character or a clear channel. The top row of the character is selected as the first row of data bits representing a feature characteristic of the character which follows the largest number of consecutive clear channel rows. The top two rows of the character are then compared. The row having the greatest number of feature characteristic data bits is selected as the top row of the character. Signals identifying the top row of the character are generated for us by a recognition apparatus in recognizing the unknown character from the rows of data bits generated.

Abstract: A synchronization interface device to be used in conjunction with equipment with its own internally generated synchronization signal to allow harmonization with other external video signals from other devices to facilitate the manipulation of these signals, including means for separating the odd field from the internal and external signals and gate means producing a unique output state when both signals are in synchronization and a different output inhibiting the passage of the internally generated horizontal drive to means for comparing it against the external horizontal component so that the output from this comparison is fed to voltage oscillator means which produces an output in the 14 MHz range that is fed back to the slave equipment (AVE). If the gate means do not produce the unique output, the device experiences a drift until it locks in synchronization.

Abstract: An apparatus for analyzing line sequential binary data generated by scanning a printed circuit board with a scanning laser apparatus is disclosed. The circuit board contains conducting strips on an electrically insulated substrate. The conductors can be characterized by the number and the locations of their corners and by their widths and by the widths of the substrate occurring between parallel and spaced apart conductors. The line sequential data when viewed together forms a two dimensional image array of the circuit board and the two dimensional array contains information about the conducting corners, widths, etc. The line sequential binary data is first smoothed by smoothing circuits to eliminate errors due to noise, scanning equipment tolerances, etc. Then the smoothed data in line sequential format is transmitted to a corner recognition and pairing circuit where the corner features of the conductors are recognized.

Abstract: A hard copy of a video frame represented by periodic video signals is obtained by dividing the range of amplitude of the video signals into N levels, converting the video signals into N two-level brightness distributions on the screen of a monochromatic CRT under the condition that a pixel in the ith distribution has the upper of two levels only if the level of the video signal representing the corresponding pixel in the frame exceeds the ith level, and exposing a photosensitive sheet to light from the screen. Thus, each pixel on the sheet is exposed to light of predetermined brightness for a period of time functionally dependent on the level of the video signal represented by the corresponding pixel in the frame.