摘要:
In a motion vector estimating apparatus, a current picture storage unit stores image data of a current picture, and a reference-picture storage unit stores image data of a reference picture. A search window determining unit determines estimation history from previously estimated motion vectors, and determines a search window based on the estimation history. At least one of a shape, size and position of the search window is determined based on the estimation history. The search window is composed of rectangular reference regions. A block matching circuit for performing a block matching process to a current block and each of reference blocks of the search window to determine a motion vector. The search window may be limited in units of pixels, or a load of the apparatus, a power supply voltage or a temperature of the block matching circuit.
摘要:
A reference picture storing section 101 stores reference picture data referred in a motion vector estimation. A current picture storing section 102 stores a current picture data for the motion vector estimation. A motion vector estimating section 103 takes matching between the current picture data and the reference picture data to estimate a motion vector having the minimum difference. A motion vector statistics processing section 104 calculates an average value and a histogram from each picture of an estimated motion vector. A shift vector setting section 105 calculates a shift vector of a motion vector search window based on the average value and histogram in each of coded pictures. A search window designating section 106 designates a motion vector to be searched according to the calculated shift vector so as to cause the motion vector estimating section 103 to estimate the motion vector.
摘要:
In a method of manufacturing an electronic component for forming a conductor pattern on an insulating substrate by transfer method employing intaglio printing technique, this manufacturing method comprises a step of fabricating an intaglio 20 made of flexible resin forming an insulating layer 23 on a groove 21, a step of filling the groove 21 with Ag paste 24 and drying, a step of overlaying the intaglio 20 on an insulating substrate 2 having a water-soluble resin 28 formed on the surface by pressing a pressing portion 26, freezing, peeling off the intaglio 20 and insulating substrate 2, and transferring the pattern of the Ag paste 24, and a step of firing it and forming a conductor pattern.
摘要:
An image forming apparatus of this invention is constructed such that a main base frame constituting the apparatus is formed with a pair of first positioning pins. An attachment member is formed with a pair of second positioning pins and positioning holes for fittingly receiving the first positioning pins therein to position the attachment member relative to the main base frame. A brake force supplier formed with mounting holes is attached to the attachment member while positioned relative thereto by fitting insertion of the second positioning pins in the mounting holes. When the attachment member is not used, another brake force supplier can be directly mounted on the main base frame and positioned relative thereto by fitting insertion of the first positioning pins in mounting holes of the brake force supplier.
摘要:
Method of automating at least a portion of an output gradation adjustment job for an image output apparatus. Test image data are corrected according to an initial gradation correction curve, and a test image is formed according to the image data thus corrected. The test image is read by a scanner to obtain read data. Based on the read data thus obtained, test image data are newly formed. Based on the newly formed test image data, a test image is again formed. The second-time test image thus formed is read by the scanner to obtain read data. Based on the read data obtained by reading the second-time test image, the initial gradation correction curve and a predetermined reference output curve, candidate point data are obtained. Based on the candidate point data, a gradation correction curve is formed and set.
摘要:
A semiconductor device includes a first power supply line of a high potential, a second power supply line of a low potential, a third power supply line which is alternatively set to a potential equal to that of the first power supply line or to a potential lower than that of the first power supply line by some degree, and a fourth power supply line which is alternatively set to a potential equal to that of the second power supply line or to a potential higher than that of the second power supply line by some degree. A substrate bias terminal of each of pMOS transistors included in a static memory cell is connected to the first power supply line, and a source of each pMOS transistor is connected to the third power supply line. A substrate bias terminal of each of nMOS transistors included in a static memory cell is connected to the second power supply line, and a source of each pMOS transistor is connected to the fourth power supply line. In an operating condition, the third and fourth power supply lines are brought to the same potential as that of the first and second power supply lines, respectively. In a standby condition, the third and fourth power supply lines are brought to a potential lower and higher than that of the first and second power supply lines, respectively.
摘要:
A clock signal distribution circuit provides a synchronized clock signal to a plurality of chips implementing an integrated circuit. The clock signal distribution circuit has a first and a second phase lock loop, a series of voltage controlled delay circuits and a pair of transmission lines formed between the chips. The input clock signal is transmitted from the first chip to the second chip through a transmission line, the end of which is a node supplying the output clock signal to the internal circuit of the second chip. The clock signal is then returned from the output node through the second transmission line. The first phase lock loop controls the series of voltage controlled delay circuits such that the signal at a midpoint reference node has a phase equal to the phase of the output clock signal. The second phase lock loop controls the first voltage controlled delay circuit such that the signal at the first output node has a phase synchronized with the phase of the input clock signal. A plurality of transmission lines with differing delay lengths may be accommodated by bypassing a number of voltage controlled delay circuits, proportional to the delay length of the transmission lines, split equally before the clock output and after the return input.
摘要:
A phase lock loop has a lock detection circuit, a phase comparator, a charge pump circuit, a low-pass filter, a variable delay circuit and a frequency divider. The lock detection circuit generates a lock detection signal when a phase difference between an input reference clock and an output of the variable delay circuit is smaller than a predetermined value in a first stage of the synchronization operation. The input and output of the variable delay circuit are connected in a loop responding to the lock detection signal to form a voltage controlled oscillator (VCO) and shift the phase lock loop into a second stage of the synchronization operation. An initial control signal for controlling the VCO in the second stage is obtained as a value of the variable delay circuit in the first stage before generation of the lock detection signal, thereby obtaining a higher-speed synchronization operation and low jitters in the output clock.
摘要:
An integrated digital circuit includes an oscillation circuit comprising basic gate circuits having the number of stages proportional to the number of gates existing in the critical path of a synchronized circuit network and capable of controlling an oscillating frequency by at least one control signal line. A synchronized circuit network constructed with basic gate circuits capable of controlling the delay time by at least one control signal line operates synchronously by an oscillation signal transfer line. A control circuit controls the oscillation circuit and the synchronized circuit network using the control signal line so that the frequency of signal input from an externally input signal line is equalized with the frequency of signal from the oscillation circuit. Thus, the synchronized circuit network can be always operated at the frequency obtained from the oscillation signal transfer line even though the delay time of the basic gate circuit varied by variations of the device characteristics and the like.
摘要:
In one of aspects of the invention, an automatic sheet conveying mechanism comprises upper and lower casings mutually coupling sheet conveying paths in a releasable state, and a sheet guide plate for partitioning the sheet conveying paths together with the lower casing, guiding the lower surface of the sheet being conveyed, and defining the projecting extent of the functional parts supported by the lower casing into the sheet conveying path, in which the sheet guide plate is formed integrally with the lower casing.