Abstract: An action transmission system, terminal apparatus, action transmission method, and action transmission program are provided. The present invention provides an action transmission system including a first terminal apparatus for detecting a physical variation applied by a first user and a second terminal apparatus for outputting information to a second user as the physical variation. The first terminal apparatus transmits, to the second terminal apparatus, variation information indicative of a variation in physical quantity and intensity information subjectively set by the first user for the physical quantity by use of the physical variation applied by the first user. The second terminal apparatus receives the variation information and the intensity information from the first terminal apparatus, amplifies the received variation information by an amplification factor subjectively set by the second user to the intensity information, and outputs the amplified variation information as a physical variation.

Abstract: An information processing apparatus, capable of identifying vital sign information. A learning unit identifies an emotion/state of the user by comparing the generated feature vectors with feature vectors accumulated in a storage unit. Information indicating the resultant identified emotion/state of the user is output to an output unit via an output controller.

Abstract: An action transmission system, terminal apparatus, action transmission method, and action transmission program are provided. The present invention provides an action transmission system including a first terminal apparatus for detecting a physical variation applied by a first user and a second terminal apparatus for outputting information to a second user as the physical variation. The first terminal apparatus transmits, to the second terminal apparatus, variation information indicative of a variation in physical quantity and intensity information subjectively set by the first user for the physical quantity by use of the physical variation applied by the first user. The second terminal apparatus receives the variation information and the intensity information from the first terminal apparatus, amplifies the received variation information by an amplification factor subjectively set by the second user to the intensity information, and outputs the amplified variation information as a physical variation.

Abstract: The present invention relates to an information processing apparatus, an information processing method, a program, and a storage medium, capable of identifying emotion/state of a user from undefined information such as vital sign information by using an information processing apparatus. Pulse information and body motion information of a user are acquired via an input unit 91. A feature extractor 112 generates feature vectors associated with pulse information and body motion information. A learning unit 94 identifies the emotion/state of the user by comparing the generated feature vectors with feature vectors accumulated in a storage unit 95. Information indicating the resultant identified emotion/state of the user is output to an output unit 92 via an output controller 114.

Abstract: It is an object of the present invention to increase an amount of information recorded on an optical disk having at least two information recording layers. An optical disk having a plurality of information recording layers according to the present invention includes a transparent substrate, a transparent layer and at least two information recording layers formed on the transparent substrate. The information recording layers are provided so as to sandwich the transparent layer. At least one of the information recording layers has a transmittance varying layer. The transmittance varying layer is made of a material whose transmittance is changed at a predetermined temperature as a threshold value. The transmittance varying layer is made of a phase change material. The threshold value is within the temperature range from 700.degree. to 500.degree.. Crystallization speed of the transmittance varying layer is equal to or slower than 500 ns.

Abstract: The present invention radiates laser light to an optical disc 1, detects a tracking error signal based on a concave and convex form of a track by means of its reflection light, applies a tracking servo so as to selectively follow any one track of a concave track or a convex track of a spot of the laser light by using this tracking error signal, continuously stores modulation data in a memory 13, and then records on the track to which the tracking servo is applied. Further, the present invention reverses a polarity of the tracking error signal when carrying out a track jump from a track, on which current data is recorded, to an adjacent track, applies the tracking servo to a new track, reads out the modulation data from the memory 13, and records the data on the new track. Accordingly, the present invention can record the data on the concave track and the convex track while carrying out the track jump.

Abstract: An optical disk reproducing apparatus for optical disks which are have a material layer whose reflectivity is lowered when a temperature of this material exceeds a predetermined temperature, is fabricated on a transparent substrate. A plurality of phase pits have been formed in this substrate corresponding to an information signal. The optical disk reproducing apparatus comprises: an optical pickup for reading the information signal by irradiating on a recording plane of the optical disk, a first optical spot for reproducing the information signal, and also second and third optical spots each having lower light intensity than that of the first optical spot. The second and third optical spots located at positions where there is no adverse influence caused by a thermal history of the first optical spot.

Abstract: An optical recording medium has a multi-layer film including a reproducing layer and a recording holding layer magnetically coupled to each other as a recording film. While a readout light is radiated to the optical recording medium for erasing the recording holding layer and the reproducing layer or transcribing signals magnetically recorded in the recording holding layer to the reproducing layer, the signals are converted by photomagnetic effects into optical signals which are read, or an optical recording medium having phase pits changed in reflectance with temperature. While a readout light beam is radiated to the optical recording medium and the reflectance is changed partially within a scanning spot of the readout light beam, the phase pits are read. The minimum pit interval of the recording signals along the scanning direction of the readout light beam is selected to be not more than .lambda./2NA, where .lambda.

Abstract: A method for reproducing a magneto-optical recording medium the recording pits of which are erased or relieved with rise in temperature of the recording medium caused by radiation of a readout light beam or an optical recording medium the reflectance of which is changed with rise in temperature of the recording medium caused by radiation of the readout light beam, in which changes in the size of an effective reproducing region due to the temperature of the recording medium may be inhibited. To this end, when the magneto-optical disc 11, for example, is rotated at a constant angular velocity, a detecting unit 17 is provided for detecting the radial position of the magneto-optical disc 11 and the laser power as well as the external magnetic field is controlled depending on an output of the detecting unit 17 for controlling the size of an effective reproducing region to be constant without regard to the linear velocity at each reproducing position.

Abstract: An optical recording medium has a multi-layer film including a reproducing layer and a recording holding layer, in which, while a readout light is radiated to the optical recording medium for transcribing signals magnetically recorded in the recording holding layer to the reproducing layer, the signals are converted by photomagnetic effects into optical signals which are read. Alternately, an optical recording medium has phase pits formed thereon in accordance with signals and changed in reflectance with temperature, in which, while a readout light beam is radiated to the optical recording medium and the reflectance is changed partially within a scanning spot the readout light beam, the phase pits are read. The track pitch p of pits RP of recording signals in a direction at right angles to the scanning direction of the laser light is set to not more than one-half the spot diameter of the laser light to raise the track density to improve the recording capacity of the recording medium.

Abstract: To increase the track density, that is, to improve the recording density of the optical disk of ultra-high resolving power reproduction type, grooves 4 are formed in a transparent substrate 2; phase pits 1 are formed on groove bottom portions 5 and land portions 6 of the grooves; and further a material layer 3 is laminated. A polycarbonate substrate is used as the transparent substrate 2. The material layer 3 is formed of such a material that the state is partially changed due to heat of the reading light in the optical spot of the reading light but returned to the original state after the reading light has passed, and in addition the reflection factor of the material is changeable according to the state change. The material layer 3 is a ternary compound of Ge.sub.2 Sb.sub.2 Te.sub.3. The thermal conductivity of the transparent substrate 2 is smaller than that of the material layer 3.

Abstract: A method for reproducing a magneto-optical recording medium the recording pits of which are erased or relieved with rise in temperature of the recording medium caused by radiation of a readout beam, or an optical recording medium the reflectance of which is changed with rise in temperature of the recording medium caused by radiation of the readout beam, in which, when the line recording density of the recording medium is changed, the size of the effective reproducing region is controlled to an optimum value conforming to the line recording density to assure a stable reproducing state.

Abstract: A method for reproducing a magneto-optical recording medium the recording pits of which are erased or relieved with rise in temperature of the recording medium caused by radiation of a readout beam, or an optical recording medium the reflectance of which is changed with rise in temperature of the recording medium caused by radiation of the readout beam, in which changes in the size of an effective reproducing region due to the temperature of the magneto-optical or optical recording medium may be inhibited. To this end, a temperature sensor 20 for sensing the temperature of the magneto-optical disc 11, for example, is provided and the laser power or the external magnetic field is controlled depending on the detected temperature by the temperature sensor 20 to maintain a constant size of the effective reproducing region at all times.

Abstract: An optical disk having a greatly improved recording density. The disk has a transparent substrate provided with phase pits. A layer of a phase changeable material is formed on the substrate. This phase changeable material is a chalcogen or chalcogenide such as Sb.sub.2 Se.sub.3 or Sb.sub.2 Te.sub.3. When reading light is directed onto the disk, a part of the layer of the phase changeable material is melted within the spot of the reading light beam, and the reflectivity changes and a phase pit is read through the melted part. After the reading, the melted portion recrystallizes.