Abstract: The present invention discloses a DAC method having signal calibration mechanism is provided. Operation states of current sources are controlled to generate an output analog signal by a DAC circuit according to a codeword of an input digital signal. An echo signal is generated by an echo transmission circuit according to the output analog signal. The codeword is mapped to generate an offset signal by a calibration circuit according to a codeword offset mapping table. The offset signal is processed to generate an echo-canceling signal by an echo-canceling circuit. By a calibration parameter calculation circuit, offset amounts are generated according to a difference between the echo signal and the echo-canceling signal, the offset amounts are grouped to perform statistic operation according to the operation states and current offset values are calculated according to calculation among groups and converted to codeword offset values to update the codeword offset mapping table.

Abstract: A lottery ticket destroying device includes a housing, roller cutters mounted in the housing, a transmission gear set mounted on one side of the housing, a motor mounted on one side of the housing for rotating the transmission gear set to drive the roller cutters to cut lottery tickets into pieces. Each roller cutter has a plurality of helical shear grooves recessed into the roller cutter surface thereof. Each helical shear groove has a groove bottom surface, a vertical shear surface located on one side of the groove bottom surface and connected to the roller cutter surface and a chip-discharge sloping surface located on an opposite side of the groove bottom surface and connected to the roller cutter surface. Moreover, one end of the shaft of one of the roller cutters is combined with an elastic member to prevent the two roller cutters from being stuck.

Abstract: A lottery ticket destroying device includes a housing, roller cutters mounted in the housing, a transmission gear set mounted on one side of the housing, a motor mounted on one side of the housing for rotating the transmission gear set to drive the roller cutters to cut lottery tickets into pieces. Each roller cutter has a plurality of helical shear grooves recessed into the roller cutter surface thereof. Each helical shear groove has a groove bottom surface, a vertical shear surface located on one side of the groove bottom surface and connected to the roller cutter surface and a chip-discharge sloping surface located on an opposite side of the groove bottom surface and connected to the roller cutter surface. Moreover, one end of the shaft of one of the roller cutters is combined with an elastic member to prevent the two roller cutters from being stuck.

Abstract: Systems are provided for delivering a suture to close a surgical opening. An elongated deployment member may have at its distal end a retracted counterforce member. The counterforce member may be inserted into the surgical opening and deployed to resist being withdrawn from the opening. A compression member may be slid down the elongated member to compress the tissue to be sutured against the counterforce member. Suture passers loaded with suture ends may be passed through needle tubes within the elongated member to emerge from the elongated member and pierce the tissue to be sutured, then deposit the suture ends with a suture catcher. The suture passers may be withdrawn, leaving the suture ends. The suture catcher may be retracted, retaining the suture ends and the device—elongated member, retracted suture catcher, and retained suture end—may be withdrawn from the surgical opening. The suture may then be completed.

Abstract: A lottery ticket destruction apparatus includes a housing holding a motor with a pinion, sensors for detecting insertion of lottery tickets and starting up the motor, a first set of sheet-transfer rollers for flattening inserted lottery tickets and delivering flattened lottery ticket through the sensors, a set of scissor action rotary cutters with spiral cutting edges for cutting lottery tickets into small pieces through a scissor action, a second set of sheet-transfer rollers for delivering flattened lottery tickets from the sensors to the set of scissor action rotary cutters for cutting, and a transmission gear set drivable by the pinion to rotate the first and second sets of sheet-transfer rollers and the set of scissor action rotary cutters at different speeds, and shield plates surrounding the scissor action rotary cutters to shield cutting dust.

Abstract: A simulation air pump game system includes a simulation air pump including a bracket, an operating handle, a movable plate movable up and down by the operating handle in the bracket and a sensor for detecting a reciprocating motion of the movable plate and generating a detection signal each time the operating handle is operated to move the movable plate up and down through one cycle, a display, and a game console adapted for converting each detection signal provided by the simulation air pump into a control instruction and controlling the display to display predetermined air pumping simulation actions subject to the control instruction the scores thus obtained.

Abstract: Systems are provided for delivering a suture to close a surgical opening. An elongated deployment member may have at its distal end a retracted counterforce member. The counterforce member may be inserted into the surgical opening and deployed to resist being withdrawn from the opening. A compression member may be slid down the elongated member to compress the tissue to be sutured against the counterforce member. Suture passers loaded with suture ends may be passed through needle tubes within the elongated member to emerge from the elongated member and pierce the tissue to be sutured, then deposit the suture ends with a suture catcher. The suture passers may be withdrawn, leaving the suture ends. The suture catcher may be retracted, retaining the suture ends and the device—elongated member, retracted suture catcher, and retained suture end—may be withdrawn from the surgical opening. The suture may then be completed.

Abstract: This invention relates to improved electrophoretic dispersions and a method for improving the performance of an electrophoretic display. The invention also relates to a method of inducing or enhancing the threshold voltage of an electrophoretic dispersion.

Abstract: This invention relates to improved electrophoretic dispersions and a method for improving the performance of an electrophoretic display. The invention also relates to a method of inducing or enhancing the threshold voltage of an electrophoretic dispersion.

Abstract: This invention relates to improved electrophoretic dispersions and a method for improving the performance of an electrophoretic display.

Abstract: The present invention discloses structures and manufacturing processes of an ACF of improved resolution and reliability of electrical connection using a non-random array of microcavities of predetermined configuration, shape and dimension. The manufacturing process includes the steps of (i) fluidic filling of conductive particles onto a substrate or carrier web comprising a predetermined array of microcavities, or (ii) selective metallization of the array followed by filling the array with a filler material and a second selective metallization on the filled microcavity array. The thus prepared filled conductive microcavity array is then over-coated or laminated with an adhesive film.

Abstract: The present invention discloses structures and manufacturing processes of an ACF of improved resolution and reliability of electrical connection using a non-random array of microcavities of predetermined configuration, shape and dimension. The manufacturing process includes the steps of (i) fluidic filling of conductive particles onto a substrate or carrier web comprising a predetermined array of microcavities, or (ii) selective metallization of the array followed by filling the array with a filler material and a second selective metallization on the filled microcavity array. The thus prepared filled conductive microcavity array is then over-coated or laminated with an adhesive film.

Abstract: This invention relates to improved electrophoretic dispersions and a method for improving the performance of an electrophoretic display.