Abstract: Embodiments of the present invention determine the offset of a first burst of a burst pair from a centerline. This can be used to determine the desired offset position for a second burst of the burst pair. The target signal to provided the data storage unit for writing the second burst can take into account the transfer function of the controller and the physical plant so as to more accurately write at the desired offset position.

Abstract: Information relating to a playback of divided static media data included in static media transmission data is stored in static media transmission data previous than the static media transmission data, and transmitted, thereby making it possible to determine whether there is no divided static media data originally or lost when the divided static media data is not received. Accordingly, in the case where static media such as timed text and the like is used in distribution of streaming type, when receiving no static media data, a data receiving apparatus determines whether there is no media data to be next displayed or media data is lost in the course of transmission to notify a user of loss of media data correctly. Moreover, Moreover, it is possible to reduce time required for packet loss detection to execute a retransmission request without increasing pre-buffering.

Abstract: An operator number acquiring code is set in the macro-key data with correspondence to a macro-key. If the macro-key is depressed and there is the operator number acquiring code, the operator (logged on) number is supplied to the following key decode processing. A manager number may be also acquired. If a repetition start and end codes are set, the set data stored between these codes are repeatedly executed the specified number times. If a magnetic card data squiring code is set, data in a magnetic card is read and supplied to the key decode process as input key code.

Abstract: An imaging system includes an imager outputting an analog green signal, an analog blue signal, and an analog red signal in a predetermined progressive-scanning format. The analog green, blue, and red signals are converted into parallel-form digital green, blue, and red signals, respectively. A set of the parallel-form digital green, blue, and red signals is converted into a set of a parallel-form digital luminance signal, a first parallel-form digital color-difference signal, and a second parallel-form digital color-difference signal. A signal divider separates the parallel-form digital luminance signal into a first sub parallel-form digital luminance signal and a second sub parallel-form digital luminance signal. The first and second sub parallel-form digital luminance signals are converted into a serial-form digital luminance signal. The first and second parallel-form digital color-difference signals are converted into a serial-form digital color-difference signal.

Abstract: Phase-change-type optical recording medium comprises a first dielectric layer, a recording layer made of a phase change material, a second dielectric layer and a reflecting layer wherein the thicknesses of the first and second dielectric layers are determined for a given thickness of the recording layer so that the following conditions are satisfied;.DELTA.A+.DELTA.R.gtoreq.20% and .DELTA.A.gtoreq.5%wherein.DELTA.A=A(cry)-A(amo),A(cry), A(amo): light absorption rates of the recording layer in the crystal state and amorphous state, respectively,.DELTA.R=R(cry)-R(amo),R(cry) and R(amo): light reflection rates of the recording lates in the crystal state and amorphous state, respectively.