Abstract: A thermal medium and a laser recording device are provided in which medium parameters can be acquired efficiently. According to one embodiment, the thermal medium includes a photothermal conversion layer, a color development layer, a storage mechanism. The photothermal conversion layer converts an applied laser beam into heat. The color development layer develops a color by the heat converted by the photothermal conversion layer. The storage mechanism stores information related to a medium parameter including a photothermal conversion efficiency of the photothermal conversion layer.

Abstract: A thermal medium and a laser recording device are provided in which medium parameters can be acquired efficiently. According to one embodiment, the thermal medium includes a photothermal conversion layer, a color development layer, a storage mechanism. The photothermal conversion layer converts an applied laser beam into heat. The color development layer develops a color by the heat converted by the photothermal conversion layer. The storage mechanism stores information related to a medium parameter including a photothermal conversion efficiency of the photothermal conversion layer.

Abstract: A laser recording device of an embodiment is for a thermal recording medium in which at least one color development layer developing a color through heat and a protective layer protecting recorded information obtained through color development of the at least one color development layer are laminated, and has light transmission properties before recording. The laser recording device includes a recording head in which emitters emitting laser light from laser light sources are arranged, and a recording controller performing parallel processing of control for causing the laser light sources to emit light independently of each other and guiding the laser light from the emitters to the thermal recording medium.

Abstract: According to one embodiment, a solid-state imaging device includes an illuminance value calculating unit and an illuminance value output unit. The illuminance value calculating unit calculates an illuminance value based on an integration result of luminance values. The illuminance value output unit outputs the illuminance value calculated by the illuminance value calculating unit by setting, as a target, a subject image obtained through application of one of two or more illuminance measurement conditions. The two or more illuminance measurement conditions are set in advance by varying at least one of an electronic shutter time and an analog gain.

Abstract: According to one embodiment, a camera module has an exposure control unit. When an exposure error has reached within a coring range by first exposure control, the exposure control unit switches exposure control from the first exposure control to second exposure control. The exposure error shows a deviation of an exposure evaluation value to an exposure target value. In the second exposure control, an exposure change amount is reduced than at the time of the first exposure control. When the exposure error has reached a zero level by the second exposure control, the exposure control unit stops the exposure control.

Abstract: According to one embodiment, a solid-state imaging device includes a luminance integrating unit, a luminance observation value calculating unit, and an illuminance value conversion unit. The luminance integrating unit integrates a luminance value detected for every pixel. The luminance observation value calculating unit calculates a luminance observation value based on an integration result in the luminance integrating unit. The luminance observation value is an observation result of the luminance for an entire imaging screen. The illuminance value conversion unit converts the luminance observation value to an illuminance value. The luminance integrating unit integrates the luminance value discriminated in accordance with a condition set with respect to a luminance level.

Abstract: According to one embodiment, a camera module has an exposure control unit. When an exposure error has reached within a coring range by first exposure control, the exposure control unit switches exposure control from the first exposure control to second exposure control. The exposure error shows a deviation of an exposure evaluation value to an exposure target value. In the second exposure control, an exposure change amount is reduced than at the time of the first exposure control. When the exposure error has reached a zero level by the second exposure control, the exposure control unit stops the exposure control.

Abstract: According to one embodiment, a solid-state imaging device includes an illuminance value calculating unit and an illuminance value output unit. The illuminance value calculating unit calculates an illuminance value based on an integration result of luminance values. The illuminance value output unit outputs the illuminance value calculated by the illuminance value calculating unit by setting, as a target, a subject image obtained through application of one of two or more illuminance measurement conditions. The two or more illuminance measurement conditions are set in advance by varying at least one of an electronic shutter time and an analog gain.

Abstract: According to one embodiment, a solid-state imaging device includes a luminance integrating unit, a luminance observation value calculating unit, and an illuminance value conversion unit. The luminance integrating unit integrates a luminance value detected for every pixel. The luminance observation value calculating unit calculates a luminance observation value based on an integration result in the luminance integrating unit. The luminance observation value is an observation result of the luminance for an entire imaging screen. The illuminance value conversion unit converts the luminance observation value to an illuminance value. The luminance integrating unit integrates the luminance value discriminated in accordance with a condition set with respect to a luminance level.

Abstract: An information recording-reproducing apparatus includes a recording-reproducing unit configured to record information given by encoding the data in predetermined data blocks with an error correction code, the data blocks being generated by multiplexing information indicating the positions of the defect management areas, on the information storage medium and to decode the encoded information with the error correction code and reproduce the decoded information and a complementary unit configured to complement the information indicating the positions of the defect management areas on the basis of the data in data units smaller than the data blocks, when an error can be corrected in the data units or when no error is detected even if the error correction in the data blocks cannot be performed for the information that is encoded and recorded.

Abstract: A rewritable information storage medium includes a user area for storing user data, a spare area serving as a replacement area for storing user data that was unable to be stored in the defective area, and a plurality of defect management areas. The same defect management information is stored in the plurality of defect management areas. Even when all errors of the plurality of defect management areas are uncorrectable on a predetermined data unit basis, in the case where the error of the defect management information stored in any one of the defect management areas is correctable on a data unit basis smaller than the predetermined data unit, the defect management information is compensated for on the basis of the smaller data unit.

Abstract: According to one embodiment, there is provided a disk apparatus including a reading unit which reads a reflective light from a disk and outputs a read signal, an extracting unit which extracts a wobble signal from the read signal, an upper limit detector which detects an upper limit signal of the wobble signal, a lower limit detector which detects a lower limit signal of the wobble signal, an intermediate value generator which generates an intermediate value between the upper limit signal and the lower limit signal, a check unit which checks the wobble signal with the intermediate value defined as a threshold, a controller which controls an operation of the reading unit according to an address value depending on the result checked by the check unit, and a decoder which decodes the read signal from the operation-controlled reading unit and outputs a reproducing signal.

Abstract: A plurality of defect management areas (DMA set groups 1 to N) are used in a ring form in such a manner that defect management information of the DMA replaces and is recorded in the next spare area while the DMA is supposed to be still sufficiently rewritable (e.g., currently used DMA sets #1-1 to #4-1 are replaced with the next DMA sets #1-2 to #4-2), and a process returns to a first defect management area again at a time when transition of the defect management information ends up to a last spare area (DMA sets #1-N to #4-N).

Abstract: The present invention includes sync detecting means for generating a flag when the pattern of a phase detection signal is compared with the pattern of a sync pattern model signal and when the patterns match, phase detecting means for dividing a wobble clock in accordance with a predetermined wobble period and generating a flag corresponding to one of the phases of the wobble clock divided in which phase edges in the phase detection signal are concentrated, and control means for using the output flag from the phase detecting means to limit the output range of the sync detecting means and outputting a sync pattern detection flag.