Abstract: Provided is an optical recording method for recoding information on a phase-change optical recording medium at a low linear velocity by use of a divided pulse method. When forming a plurality of recording marks by use of a constant divided pulse number m, a light irradiation time period of recording light for recording a recording mark having a time length of nT is divided in the order of {?1T, ?1T, ?2T, ?2T, . . . , ?iT, ?iT, . . . , ?mT, ?mT} (in which m is a natural number representing a divided pulse number, ?i (1?i?m) is a real number greater than 0, ?i (1?i?m?1) is a real number greater than 0, and ?m is a real number equal to or above 0).

Abstract: In order to carry out gradation drawing processing without causing deterioration of printing processing throughput, i.e., deterioration of printer engine performance, in the event that a received drawing command is a gradation drawing command, the degree of change of color within the gradation drawing area is obtained, and a thinning-out level within the gradation drawing area is determined, based on the obtained degree of change of color. An enlargement value is determined based on the thinning-out level decided upon, and instructions are given to an image processing unit to draw the gradation drawing area in a manner enlarged with the enlarging value decided upon. Next, the color values of the pixel values within the gradation drawing area are calculated at pixel intervals determined by the thinning-out level, and this is used as gradation data.

Abstract: In a rewritable compact disc having a wobble groove on a substrate, crystal and amorphous states of a phase-change recording layer are an unrecorded/erased state and a recorded state, respectively. When the recording layer is exposed to recording light, amorphous marks assuming the recorded state are formed. At any of 2-, 4- and 8-times velocities with respect to a reference velocity (1-times velocity) whose linear velocity is 1.2–1.4 m/s, modulation m11 of a recorded signal when the recording light of approximately 780 nm in wavelength irradiates the recording layer via an optical system with NA=0.5 or 0.55 is 60–80%. A topmost level Rtop of reflectivity of the eye pattern of the recorded signal during retrieving at the 1-times velocity is 15–25%, and a jitter of the individual length of marks and inter-mark spaces during retrieving at 1-times velocity is 35 ns or less.

Abstract: A method transmitting and receiving data other than voice data and preventing deterioration in quality of communication voice data due to transmission and reception of the other than voice data, and utilizing a limited communication bandwidth when a plurality of users conduct the broadcast communication through common use of the conference room on the network. Upon a user terminal transmitting second data, verifying whether any of a plurality of identified user terminals has a right of transmission of first data. The method further includes that upon a user terminal having the a transmission right of first data, setting a value obtained by subtracting the communication bandwidth required for transmission of the first data from the communication bandwidth which each user terminal can use as the communication bandwidth for transmission of the second data.

Abstract: To provide an optical recording method to be used for recording at a high data transfer rate where the reference clock frequency is at least about 200 MHz and a linear velocity is about 40 m/sec. When recording mark length-modulated information is to be recorded on a recording medium by applying a recording laser beam locally to the recording medium, in order to form one record mark length of nT, m pieces of recording pulses ?iT (1?i?m) and m pieces of off-pulses ?iT (1?i?m), represented by: ?1T, ?1T, ?2T, ?2T, . . . , ?1T, ?1T, . . .

Abstract: An semiconductor integrated circuit that uses a low-frequency operation clock to implement probing for fast operation. This semiconductor integrated circuit comprises a time adjustment circuit for adjusting the pulse width of enable signals. In normal mode, the time adjustment circuit does not convert the pulse width of enable signals. However, during probing, the time adjustment circuit converts an enable signal into an enable signal with a short pulse width for testing. In normal mode, a memory control circuit operates to synchronize with an unconverted enable signal. During probing, it operates in synchronization with an enable signal converted to one with a shorter pulse width.

Abstract: This invention is to enable transfer of a right to speak in an audio teleconference in view of usability. In this invention, a PoC server is introduced to achieve new functions, such as transfer of the right to speak, reservation to acquire the right to speak, and deprivation of the right to speak. The PoC server has a teleconference presence manager, a teleconference manager, and a teleconference audio communication manager. The right to speak is managed in a presence data storage of the teleconference presence manager. The teleconference presence manager directly manages the presence data storage, but the teleconference manager manages transfer of the right to speak. In addition, the teleconference manager manages reservation of the right to speak by a storage for a reservation list of the right to speak. The teleconference audio communication manager carries out routing of audio data. At that time, only audio data received from a user holding the right to speak is transferred.

Abstract: An optical information recording medium for recording information by a plurality of record mark lengths, wherein the shortest mark length is at most 0.5 ?m, and a crystal state is an unrecorded or erased state and an amorphous state is a recorded state, wherein the erasing is carried out by recrystallization which substantially proceeds by crystal growth from an interface between the amorphous portion or a melt portion and a peripheral crystal portion; and an optical recording method suitable therefore. The medium of the present invention has characteristics that overwriting can be made at a high speed, the jitter of mark edge is small, mark length modulation recording can be made at a high density, and the formed mark is excellent in the stability with the lapse of time.

Abstract: In an optical recording method used when information is recorded in a phase-change recording layer of a large-capacity rewritable optical recording medium such as a DVD-RW, one block pulse is used as a recording pulse for forming one recording mark when a recording velocity is higher than a recording linear velocity at which the rewritable optical recording medium can be rewritten, whereas a pulse train comprised of a plurality of short pulses is used as the recording pulse for forming one recording pulse when the recording velocity is within recording linear velocities at which the rewritable optical recording medium can be rewritten, whereby high-velocity recording is realized.

Abstract: A phase-change recording material used for an information recording medium utilizing a crystalline state as a non-recorded state and an amorphous state as a recorded state, which has the composition of the following formula (1) as the main component: (Sb1-xSnx)1-y-w-zGeyTewM1z??formula (1) wherein each of x, y, z and w represents atomicity, x, z and w are numbers which satisfy 0.01?x?0.5, 0?z?0.3 and 0?w?0.1, respectively, and the element M1 is at least one element selected from the group consisting of In, Ga, Pt, Pd, Ag, rare earth elements, Se, N, O, C, Zn, Si, Al, Bi, Ta, W, Nb and V, and (I) when z=0 and w=0, y is a number which satisfies 0.1?y?0.3, (II) when 0?z?0.3 and w=0, y is a number which satisfies 0.05?y?0.3, and (III) when 0?z?0.3 and 0<w?0.1, y is a number which satisfies 0.01?y?0.3.

Abstract: A presence server stores a presence that is identified by presence IDs “a1” and “a2”, as the presence of a user “A”. User “A” can pass a card that they hold through a card reader at a timing of their choosing. The card reader reads in data from the card and transmits a renewal request to the presence server. The renewal request includes a renewer ID, an object ID, category information and the presence. When the presence server receives the renewal request, it specifies the presence ID “a1” of user “A” to be the presence that is to be renewed, based on the category information, and moreover, rewrites the presence of the presence ID “a1” to a presence “meeting room A” that is included in the renewal request. Thus, the card reader can renew the presence designated by the “category information”. As for the presence that is renewed, it is notified to a watcher of the presence “a1” from the presence server.

Abstract: In a rewritable compact disc having a wobble groove on a substrate, crystal and amorphous states of a phase-change recording layer are an unrecorded/erased state and a recorded state, respectively. When the recording layer is exposed to recording light, amorphous marks assuming the recorded state are formed. At any of 2-, 4- and 8-times velocities with respect to a reference velocity (1-times velocity) whose linear velocity is 1.2-1.4 m/s, modulation m11 of a recorded signal when the recording light of approximately 780 nm in wavelength irradiates the recording layer via an optical system with NA=0.5 or 0.55 is 60-80%. A topmost level Rtop of reflectivity of the eye pattern of the recorded signal during retrieving at the 1-times velocity is 15-25%, and a jitter of the individual length of marks and inter-mark spaces during retrieving at 1-times velocity is 35 ns or less.

Abstract: A phase-change recording material on which high speed recording/erasing is possible, which has excellent recording characteristics, which has a high storage stability of recording signals and which is excellent in the repeated recording durability, and an information recording medium using the above material are provided. A phase-change recording material characterized by containing as the main component a composition represented by {(Sb1-xGex)1-yIny}1-z-wMzTew wherein x, y, z and w are numbers satisfying 0.001?x?0.3, 0?y?0.4, 0?z?0.2 and 0?w?0.1, and M is at least one element selected from lanthanoids, provided that z and w are not 0 at the same time.

Abstract: A phase-change recording material on which high velocity recording/erasing is possible, which provides excellent recording signal characteristics, which provides a high storage stability of the recording signals, with which the change in the reflectivity of the recorded signals is small even after a long term storage, and which provides excellent recording signal characteristics even if overwriting is carried out again, and an information recording medium employing the above material, are provided. It is characterized by containing as the main component a composition represented by Gex(InwSn1-w)yTezSb1-x-y-z (wherein the Sb content is higher than any one of the Ge content, the In content, the Sn content and the Te content, and x, y, z and w representing atomicity ratios satisfy (i) 0?x?0.3, (ii) 0.07?y-z, (iii) wxy-z?0.1, (iv) 0<z, (v) (1?w)xy?0.35 and (vi) 0.35?1-x-y-z).

Abstract: An optical information recording medium for recording information by a plurality of record mark lengths, wherein the shortest mark length is at most 0.5 ?m, and a crystal state is an unrecorded or erased state and an amorphous state is a recorded state, wherein the erasing is carried out by recrystallization which substantially proceeds by crystal growth from an interface between the amorphous portion or a melt portion and a peripheral crystal portion; and an optical recording method suitable therefore. The medium of the present invention has characteristics that overwriting can be made at a high speed, the jitter of mark edge is small, mark length modulation recording can be made at a high density, and the formed mark is excellent in the stability with the lapse of time.

Abstract: A video/computer game machine maps external images onto animated game players in a game program. An image of a person's face may be mapped onto the head of an animated game player. The person may then play the game using the animated game player having a face that appears to be that of the person. Similarly, images of other persons can be mapped on other animated game players that appear in the video game program. Improved realism of video games is obtained by enabling individuals to create animated game players that have features, e.g., a facial image, of the individual or that were selected and imported by the individual.

Abstract: In a rewritable compact disc having a wobble groove on a substrate, crystal and amorphous states of a phase-change recording layer are an unrecorded/erased state and a recorded state, respectively. When the recording layer is exposed to recording light, amorphous marks assuming the recorded state are formed. At any of 2-, 4- and 8-times velocities with respect to a reference velocity (1-times velocity) whose linear velocity is 1.2-1.4 m/s, modulation m11 of a recorded signal when the recording light of approximately 780 nm in wavelength irradiates the recording layer via an optical system with NA=0.5 or 0.55 is 60-80%. A topmost level Rtop of reflectivity of the eye pattern of the recorded signal during retrieving at the 1-times velocity is 15-25%, and a jitter of the individual length of marks and inter-mark spaces during retrieving at 1-times velocity is 35 ns or less.

Abstract: The present invention provides CD-RW which makes high velocity recording at a level of at least 24-times velocity possible, rewritable DVD which makes high velocity recording at a level of at least 6-times velocity possible, and a recording method therefor, while maintaining interchangeability with conventional CD-RW standards and rewritable DVD standards.

Abstract: An optical information recording medium having a multilayer structure comprising at least a lower protective layer, a phase-change type optical recording layer, an upper protective layer and a reflective layer, on a substrate, wherein the phase-change type optical recording layer has a composition of Zn&ggr;1In&dgr;1Sb&zgr;1Te&ohgr;1, where 0.01≦&ggr;1≦0.1, 0.03≦&dgr;1≦0.08, 0.5≦&zgr;1≦0.7, 0.25≦&ohgr;1≦0.4, and &ggr;1+&dgr;1+&zgr;1+&ohgr;1=1, whereby overwrite recording is carried out by modulation of light intensity of at least strong and weak two levels, so that a crystalline state is an unrecorded state, and an amorphous state is a recorded state.

Abstract: The invention is to provide a water based ink for ball-point pen capable of writing also on a non-permeable surface and ball-point pen using a same ink. In the invention, there are provided a solvent formed by a water and an alcoholic solvent having a vapor pressure at 20° C. of 0.5 kPa or higher, a pigment constituting a coloring material, a water-soluble resin constituting a writing fixing agent, and a surfactant of phosphoric acid ester type wherein an ink viscosity at 20° C. is within a range of 5 to 30 mPa·s, and ball-point pen using the same ink.