Abstract: An optical pickup includes an optical base mounted with at least one optical element, a light source that supplies light incident on the at least one optical element, and a tilt spacer that is disposed between the light source and the optical base to adjust a characteristic of the light that enters the optical base. With the characteristic of the light that enters the optical base adjusted by the tilt spacer, the optical base and the light source are fixed directly to each other.

Abstract: An optical pickup includes an optical base mounted with at least one optical element, a light source that supplies light incident on the at least one optical element, and a tilt spacer that is disposed between the light source and the optical base to adjust a characteristic of the light that enters the optical base. With the characteristic of the light that enters the optical base adjusted by the tilt spacer, the optical base and the light source are fixed directly to each other.

Abstract: In an electronic device including a temperature sensor and an electronic component which is a heat generation source, the temperature is measured while the influence of heat from the electronic component is reduced. The electronic device includes: a base formed of a resin material; a board which is disposed at one side of the base, and includes an electronic component and a temperature sensor; and a heat sink which is disposed at the other side of the base for dissipating heat generated by the electronic component. The heat sink includes an extension part extending from the other side of the base toward a position of the board at which the electronic component is provided.

Abstract: In an electronic device including a temperature sensor and an electronic component which is a heat generation source, the temperature is measured while the influence of heat from the electronic component is reduced. The electronic device includes: a base formed of a resin material; a board which is disposed at one side of the base, and includes an electronic component and a temperature sensor; and a heat sink which is disposed at the other side of the base for dissipating heat generated by the electronic component. The heat sink includes an extension part extending from the other side of the base toward a position of the board at which the electronic component is provided.

Abstract: A light emitting device includes a base, a light-emitting module, and a shielding case. The light-emitting module is fixed to the base via a curved flexible printed-circuit. The shielding case fixed to the base in such a manner that the light-emitting module is held in a position to resist a restoring force of the flexible printed-circuit which is generated by the curve of the flexible printed-circuit. The light-emitting module includes a heat source, and the shielding case includes a projection. The projection controls movement of the light-emitting module in a direction perpendicular to the direction in which the light-emitting module is held by the shielding case. The projection and the light-emitting module are bonded to each other with silicone.

Abstract: A download system capable of appropriately spreading loads on a server and on a transmission path, and further enhancing convenience in download of data. A reservation candidate acquirer of a communication terminal acquires from a software managing server reservation candidate information containing time information about time zones as candidates to which a reservation for download of an update file can be allocated. At the communication terminal a user selects a reserved time zone from the time zones corresponding to the time information included in the reservation candidate information, and the software managing server registers the reservation in the reserved time zone. Thereby, the reserved time zone can be selected from the candidate time zones transmitted by the software managing server and the candidate time zones are determined based on a reservation table set so as to spread loads on the software managing server and on the transmission path.

Abstract: The method of the present invention is an update method of a software which is stored in a rewritable non-volatile memory of a communication terminal and is directly executed. The method comprises: an update file transfer step in which an update software is transferred to the communication terminal from a software management server for managing the update software which is to be stored in the rewritable non-volatile memory as an update file, and the update file is stored in a rewritable volatile memory of the communication terminal; and an update software rewriting step in which the software, which is stored in the rewritable non-volatile memory and is directly executed, is rewritten with the update software stored in the rewritable volatile memory as the update file after the update file transfer step.

Abstract: A transmitter cell phone 10 is provided with a controller 11 for fulfilling functions of a data encryptor, a first key encryptor, and an encryption file generator. The data encryptor encrypts data, using a first encryption key. The first key encryptor encrypts the first encryption key, using a second encryption key. The encryption file generator generates an encryption file of the data from the data encrypted by the data encryptor, the first encryption key encrypted by the first key encryptor, and user-specific information permitting identification of a user of the mobile communication terminal.

Abstract: A download system capable of appropriately spreading loads on a server and on a transmission path, and further enhancing convenience in download of data. A reservation candidate acquirer of a communication terminal acquires from a software managing server reservation candidate information containing time information about time zones as candidates to which a reservation for download of an update file can be allocated. At the communication terminal a user selects a reserved time zone from the time zones corresponding to the time information included in the reservation candidate information, and the software managing server registers the reservation in the reserved time zone. Thereby, the reserved time zone can be selected from the candidate time zones transmitted by the software managing server and the candidate time zones are determined based on a reservation table set so as to spread loads on the software managing server and on the transmission path.

Abstract: An information communication system 1 according to the present invention is comprised of a cellular phone 10 having a data storage 11, a data list transmitter 13, and a data transmitter 16; and a cellular phone 20 having a check list DB 21 and a data receiver 26. The cellular phone 10 makes the data list transmitter 13 transmit a data list of content data stored in the data storage 11, to the cellular phone 20. The cellular phone 20 collates the data list with a check list stored in the check list DB 21 to generate a request list, and transmits the request list to the cellular phone 10. The cellular phone 10 extracts the content data recorded in the received request list from the data storage 11 and transmits the content data to the cellular phone 20. The cellular phone 20 receives the content data through the data receiver 26.

Abstract: The method of the present invention is an update method of a software which is stored in a rewritable non-volatile memory of a communication terminal and is directly executed. The method comprises: an update file transfer step in which an update software is transferred to the communication terminal from a software management server for managing the update software which is to be stored in the rewritable non-volatile memory as an update file, and the update file is stored in a rewritable volatile memory of the communication terminal; and an update software rewriting step in which the software, which is stored in the rewritable non-volatile memory and is directly executed, is rewritten with the update software stored in the rewritable volatile memory as the update file after the update file transfer step.

Abstract: A transmitter cell phone 10 is provided with a controller 11 for fulfilling functions of a data encryptor, a first key encryptor, and an encryption file generator. The data encryptor encrypts data, using a first encryption key. The first key encryptor encrypts the first encryption key, using a second encryption key. The encryption file generator generates an encryption file of the data from the data encrypted by the data encryptor, the first encryption key encrypted by the first key encryptor, and user-specific information permitting identification of a user of the mobile communication terminal.

Abstract: An information communication system 1 according to the present invention is comprised of a cellular phone 10 having a data storage 11, a data list transmitter 13, and a data transmitter 16; and a cellular phone 20 having a check list DB 21 and a data receiver 26. The cellular phone 10 makes the data list transmitter 13 transmit a data list of content data stored in the data storage 11, to the cellular phone 20. The cellular phone 20 collates the data list with a check list stored in the check list DB 21 to generate a request list, and transmits the request list to the cellular phone 10. The cellular phone 10 extracts the content data recorded in the received request list from the data storage 11 and transmits the content data to the cellular phone 20. The cellular phone 20 receives the content data through the data receiver 26.

Abstract: An apparatus actuates an objective lens in axial and circumferential directions through annular magnetic gaps which are formed by yokes and a magnet. In order to retain the objective lens in the neutral position in the circumferential direction, two or four magnetic pieces are mounted on a lens mount and disposed near the circumferetial ends of the annular magnetic gaps in which the force caused by the magnetic potential energy in the magnetic gaps acts on the magnetic pieces to pull them back in the direction of the magnetic gaps so that a magnetic spring for retaining the objective lens at the neutral position is formed by the magnetic pieces.

Abstract: An axially focusable objective lens is retained in a neutral position in the axial focusing direction by means of at leaast one magnetic member disposed inside or near the ends of magnetic gaps formed by yokes and magnets. The magnetic member is mounted on the periphery of a retaining tube which carries the objective lens and is positioned in the magnetic gaps which exhibit a non-uniform magnetic field distribution so that the magnetic member is subjected to a force acting in a direction in which the potential energy becomes stable. This force is utilized as a magnetic spring in the axial focusing direction. The magnetic spring requires no additional space thereby enabling a reduction in the size of the actuator and achieving excellent temperature characteristics.

Abstract: An objective lens apparatus for an optical disc player comprises an objective lens holder rotatable about a center axis, an objective lens carried by the holder at a location spaced from the center axis, an optical member, a magnetic flux generating member for generating magnetic flux, and tracking and focusing coils interacting with the magnetic flux for effecting tracking and focusing adjustments of the objective lens. The optical member rotates simultaneously with the lens holder and leads light which is incident along the center axis to the objective lens in a direction parallel to the center axis thereby eliminating optical modulation of the light caused by rotation of the lens holder in the tracking direction.