Abstract: Provided is a head-up display apparatus capable of preventing damage due to sunlight and ensuring user convenience. A reflection mirror M1 reflects an image created by a display panel and projects it onto a display region. A solar radiation sensor detects a sunlight intensity when a position of sun exists within a predetermined detection range. A blocking mechanism forms a projected light path of an image between the display region and the display panel when being turned off, and blocks the projected light path of the image and an incident light path of the sunlight which is direction opposite thereto when being turned on. A protection processor controls ON/OFF of the blocking mechanism based on an estimated temperature of the display panel, which is estimated by using a sunlight intensity from the solar radiation sensor, luminance of a light source, and an ambient temperature.

Abstract: Provided is a head-up display apparatus capable of preventing damage due to sunlight and ensuring user convenience. A reflection mirror M1 reflects an image created by a display panel and projects it onto a display region. A solar radiation sensor detects a sunlight intensity when a position of sun exists within a predetermined detection range. A blocking mechanism forms a projected light path of an image between the display region and the display panel when being turned off, and blocks the projected light path of the image and an incident light path of the sunlight which is direction opposite thereto when being turned on. A protection processor controls ON/OFF of the blocking mechanism based on an estimated temperature of the display panel, which is estimated by using a sunlight intensity from the solar radiation sensor, luminance of a light source, and an ambient temperature.

Abstract: Provided is a head-up display apparatus capable of preventing damage due to sunlight and ensuring user convenience. A reflection mirror M1 reflects an image created by a display panel and projects it onto a display region. A solar radiation sensor detects a sunlight intensity when a position of sun exists within a predetermined detection range. A blocking mechanism forms a projected light path of an image between the display region and the display panel when being turned off, and blocks the projected light path of the image and an incident light path of the sunlight which is direction opposite thereto when being turned on. A protection processor controls ON/OFF of the blocking mechanism based on an estimated temperature of the display panel, which is estimated by using a sunlight intensity from the solar radiation sensor, luminance of a light source, and an ambient temperature.

Abstract: An optical-information recording/reproducing apparatus of the present invention is capable of carrying out position detection of a reproduction image even if reproduction image data with incomplete alignment marks (markers) is obtained. A relative correlation value is calculated from a first correlation value retained by a first correlation-value retaining unit and a second correlation value retained by a second correlation-value retaining unit, and pass/fail of a position detection result of the marker is judged according to the relative correlation value. The pass/fail of the position detection result is judged by mutually comparing the detection positions of the markers judged as passes by the relative correlation-value judgement, the positions of the markers judged as fail by the relative correlation-value judgement or the mutual position judgement is complemented, and the position of two-dimensional data is detected based on the pass-judged markers and the complemented markers.

Abstract: An optical-information recording/reproducing apparatus of the present invention is capable of carrying out position detection of a reproduction image even if reproduction image data with incomplete alignment marks (markers) is obtained. A relative correlation value is calculated from a first correlation value retained by a first correlation-value retaining unit and a second correlation value retained by a second correlation-value retaining unit, and pass/fail of a position detection result of the marker is judged according to the relative correlation value. The pass/fail of the position detection result is judged by mutually comparing the detection positions of the markers judged as passes by the relative correlation-value judgement, the positions of the markers judged as fail by the relative correlation-value judgement or the mutual position judgement is complemented, and the position of two-dimensional data is detected based on the pass-judged markers and the complemented markers.

Abstract: A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with an additional information includes a discriminator which discriminates a type of the digital information signal based on the additional information, a recorder which generates control information based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto, a reproducer which reproduces the recorded digital information signal recorded by the recorder, and a controller which controls reproduction based on the control information. When the discriminator discriminates the type of the digital information signal as being a specific type and the digital information signal is recorded by the recorder, the reproducer reproduces the digital information signal.

Abstract: An information management apparatus capable of reliable management of distributed information and an information providing system employing the same information management apparatus has a main information reproducing system for reproducing main information recorded in a given recording medium; and a reproduction management system for managing the main information reproducing system for reproducing the main information. A receiver is provided with a unit for recording distributed information and control information limiting the number of main information reproducing cycles on a recording medium, and a main information reproducing system provided with a reproduction disabling function for limiting the reproduction of main information.

Abstract: An image recording and reproducing apparatus can record and reproduce both a digital signal and an analog signal. Operations of a broadcast receiving apparatus and a recording and reproducing apparatus are integrated, and superimposition of information on an analog image is realized during recording and reproduction of a digital signal. The broadcast receiving apparatus and the recording and reproducing apparatus communicate with each other to be able to set and obtain states of the opposite apparatus, so that one of the apparatus notifies information of the other apparatus to a user, and causes the user to set the information in a picture having the same form as a picture used to notify a state of one apparatus to the user, and causes the user to set the state.

Abstract: A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with an additional information includes a discriminator which discriminates a type of the digital information signal based on the additional information, a recorder which generates control information based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto, a reproducer which reproduces the recorded digital information signal recorded by the recorder, and a controller which controls reproduction based on the control information. When the discriminator discriminates the type of the digital information signal as being a specific type and the digital information signal is recorded by the recorder, the reproducer reproduces the digital information signal.

Abstract: A digital video signal recording method for recording on a magnetic recording medium by using a rotary head, a first digital compressed video signal having a predetermined number of bytes in a packet format and a second digital compressed video signal having a predetermined number of bytes in a packet format which is generated from said first digital compressed video signal, including: adding information representing a sequence of arrangement of said second digital compressed video signal to said second digital compressed video signal, said sequence representing information including at least information indicating a sequence within a predetermined region; and recording said second digital compressed video signal thus added, on a predetermined region on said magnetic recording medium.

Abstract: A digital information recording-reproducing apparatus for recording a digital information signal which includes a recording circuit for recording the digital information signal together with control information, and a reproducing circuit for detecting the recorded control information at a time the recorded digital information signal is to be reproduced, and reproducing the recorded digital information signal only if the detected control information satisfies a predetermined condition.

Abstract: A digital information recording-reproducing apparatus for recording a digital information signal which includes a recording circuit for recording the digital information signal together with control information, and a reproducing circuit for detecting the recorded control information at a time the recorded digital information signal is to be reproduced, and reproducing the recorded digital information signal only if the detected control information satisfies a predetermined condition.

Abstract: A digital information recording-reproducing apparatus for recording and reproducing a digital information signal which includes a recording circuit for recording the digital information signal together with control information, and a reproducing circuit for detecting the recorded control information at a time the recorded digital information signal is to be reproduced, and reproducing the recorded digital information signal only if the detected control information satisfies a predetermined condition.

Abstract: An information management apparatus capable of reliable management of distributed information and an information providing system employing the same information management apparatus has a main information reproducing system for reproducing main information recorded in a given recording medium; and a reproduction management system for managing the main information reproducing system for reproducing the main information. A receiver is provided with a unit for recording distributed information and control information limiting the number of main information reproducing cycles on a recording medium, and a main information reproducing system provided with a reproduction disabling function for limiting the reproduction of main information.

Abstract: An image recording and reproducing apparatus can record and reproduce both of a digital signal and an analog signal. Operations of a broadcast receiving apparatus and a recording and reproducing apparatus are integrated and superimposition of information on an analog image is realized during recording and reproduction of a digital signal. The broadcast receiving apparatus and the recording and reproducing apparatus communicate with each other to be able to set and obtain states of the opposite apparatus, so that one of the apparatus notifies information of the other apparatus to a user and causes the user to set the information in a picture having the same form as a picture used to notify a state of one apparatus to the user and to cause the user to set the state.

Abstract: An image recording and reproducing apparatus can record and reproduce both a digital signal and an analog signal. Operations of a broadcast receiving apparatus and a recording and reproducing apparatus are integrated, and superimposition of information on an analog image is realized during recording and reproduction of a digital signal. The broadcast receiving apparatus and the recording and reproducing apparatus communicate with each other to be able to set and obtain states of the opposite apparatus, so that one of the apparatus notifies information of the other apparatus to a user, and causes the user to set the information in a picture having the same form as a picture used to notify a state of one apparatus to the user, and causes the user to set the state.

Abstract: The present invention relates to an information providing system. More particularly, this invention relates to an information management apparatus capable of reliable management of distributed information and an information providing system employing the same information management apparatus. The information management apparatus comprises a main information reproducing means for reproducing main information recorded in a given recording medium; and a reproduction management means for managing the main information reproducing means for reproducing the main information. The present invention provides a receiving means provided with a means for recording distributed information and control information limiting the number of main information reproducing cycles on a recording medium, and a main information reproducing means provided with a reproduction disabling means for limiting the reproduction of main information.

Abstract: An object of the present invention is to provide a digital signal recording method and a digital signal recording apparatus, capable of readily producing a signal used to reproduce in a trick play mode from a digital compression video signal. The above-described object of the present invention may be achieved by such a digital video signal recording method for recording a first compression frame signal compressed without using a correlation between frames, and a digital compression video signal having preselected bytes of a packet format constituted by a second compression frame signal compressed with using the correlation between the frames, in which a third signal made of a packet containing the first compression frame signal is produced, and then is recorded in combination with the packet of the digital compression signal.

Abstract: In a digital information recording and reproducing apparatus of a rotary magnetic head type for selecting and recording a plurality of digital information signals having different transmission rates and for selectively reproducing the recorded signal, a high-rate digital information signal and a low-rate digital information signal are inputted for selection of either one thereof to be converted by a recording-system encoder into two channels of recording signals. When recording the high-rate signal, the rotary drum is turned at a rotation speed and the magnetic tape is fed at a feed speed (V1) to conduct 4-track azimuth recording of the signals for each rotation of the rotary drum by the first to fourth magnetic heads.

Abstract: An object of the present invention is to provide a digital signal recording method and a digital signal recording apparatus, capable of readily producing a signal used to reproduce in a trick play mode from a digital compression video signal. The above-described object of the present invention may be achieved by such a digital video signal recording method for recording a first compression frame signal compressed without using a correlation between frames, and a digital compression video signal having preselected bytes of a packet format constituted by a second compression frame signal compressed with using the correlation between the frames, in which a third signal made of a packet containing the first compression frame signal is produced, and then is recorded in combination with the packet of the digital compression signal.