85 results about "Timing mark" patented technology

Timing marks are printed at the left and right of a data mark of a two-dimensional dot code. Whether or not the data mark exists is determined based on the position on the line connecting the centers of the timing marks at both ends at the left and right of the data mark.

A data recording medium has tracks with pseudo-noise (PN) sequences with good autocorrelation properties as servo information for controlling the position of the recording head. A first set of alternating tracks uses a leading pseudo-random binary sequence (PRBS), which is a PN sequence with good autocorrelation properties, and a following PRBS that is cyclically shifted from the leading PRBS. A second set of alternating tracks interleaved with the first set also has a leading PRBS and a following PRBS that is cyclically shifted from the leading PRBS, but the leading PRBS in each of the tracks in the second set is offset along-the-track from the leading PRBS in the tracks of the first set. The head positioning control system uses the leading PRBS to generate a servo timing mark (STM), the cyclic shift to generate track identification (TID), and the following PRBS from adjacent tracks to generate the head position error signal (PES).

Designed to efficiently effect duplex printing with a single digital printer, a duplex printing apparatus is provided which comprises: a pair of feed roll units arranged across the digital printer from each other in a direction of travel of a web of paper and each adapted to be driven synchronously with a paper supply and a paper takeup unit and for feeding the web of paper to travel forwards and backwards while an upper surface of the web of paper faces an under surface of the digital printer; a turnover unit arranged at one of a site between the paper supply unit and the feed roll unit on the paper supply side and a site between the paper takeup unit and the feed roll unit on the paper takeup side, whereby the traveling web of paper is turned over through, and is allowed to by-pass, a turnover path of the turnover unit; a mark sensor arranged on at least one of sides across the-digital printer from each other in a direction of travel of the web of paper and upstream in a direction of travel of the web of paper, an upper surface of which is being printed on by the digital printer, for detecting a timing mark which has been printed by the digital printer on an under surface of the web of paper; and a control unit operable in response to a detection value from the mark sensor for controlling the digital printer so that on the upper surface of the web of paper there is printed an image corresponding to an image that has been printed on the under surface of the web of paper.

A clock tracking circuit and method uses a clock compensation signal to compensate for timing marks on a media disk. The clock compensation signal may compensate for at least one of improper clock track closure and written-in jitter of the timing marks used to produce the measured clock signal. The clock compensation signal may be used to control a controllable oscillator used to generate the clock signal that thereby provides a compensated clock signal.

Detection capability of a servo timing mark (STM) is improved. Long STM is configured by pseudo-STM forming part of an AGC / PLL pattern and intrinsic STM. When a system can not recognize the intrinsic STM, it keeps a state that a sector detection window is opened, and is operated in a long STM detection mode to recognize the long STM, thereby generates an STM detection signal. After the STM detection signal has been generated, an STM detection window is closed, and the system is operated in an intrinsic STM detection mode. Since the long STM has longer bit length than the intrinsic STM, it has high discriminating power with respect to other bit patterns. Therefore, even if the sector detection window is remained to be in an opened state, bit strings of data sector, address information in a servo sector or the like is not falsely recognized.

Methods and systems for training cognitive skills are disclosed. The methods and systems include: providing, via a computing device and user interface display, musical rhythm training comprising at least one trial comprising: displaying on the user interface display, via the user computing device, a rhythm track comprising at least one stationary beat timing mark and at least one moving beat timing mark repeatedly moving along the rhythm track at a uniform speed; receiving via a user interface input an indication from the user that the user perceives a moving beat timing mark to be coincident with a stationary beat timing mark; and providing, via the user interface, an indicator that the user is correct or not correct.

A data recording system uses a recording medium in which the tracks have pseudo-noise (PN) sequences with good autocorrelation properties as servo information for controlling the position of the recording head. A first set of alternating tracks uses a leading pseudo-random binary sequence (PRBS), which is a PN sequence with good autocorrelation properties, and a following PRBS that is cyclically shifted from the leading PRBS. A second set of alternating tracks interleaved with the first set also has a leading PRBS and a following PRBS that is cyclically shifted from the leading PRBS, but the leading PRBS in each of the tracks in the second set is offset along-the-track from the leading PRBS in the tracks of the first set. The head positioning control system uses the leading PRBS to generate a servo timing mark (STM), the cyclic shift to generate track identification (TID), and the following PRBS from adjacent tracks to generate the head position error signal (PES).