Abstract: A solar tracking device including a solar panel, an orientation control device, and an inclination sensing device is provided. The solar panel is suitable for converting solar energy into electric energy. The orientation control device controls an orientation of the solar panel according to the position and time of the solar panel. The inclination sensing device is disposed on the solar panel for detecting an inclination direction of the solar panel. The inclination sensing device is suitable for outputting a feedback signal to the orientation control device to adjust the orientation of the solar panel. The solar tracking device has a simple tracking mechanism because of a simple feedback mechanism of the inclination sensing device.

Abstract: A solar tracking and concentration device, including at least one reflecting unit, a receiving unit, a controlling device, and a sensing device, is provided. The reflecting unit having a reflecting surface reflects and concentrates sunlight. The receiving unit having a receiving surface is used to receive the sunlight reflected and reflected by the reflecting unit. The receiving unit and the reflecting unit face each other. According to the position and the time of the reflecting unit, the controlling device controls a rotation angle of the reflecting unit. The sensing device on the receiving unit may detect an inclination direction of the reflecting unit and output a first feedback signal to the controlling device to calibrate a direction of the reflecting unit facing the sun.

Abstract: A solar tracking and concentration device, including at least one reflecting unit, a receiving unit, a controlling device, and a sensing device, is provided. The reflecting unit having a reflecting surface reflects and concentrates sunlight. The receiving unit having a receiving surface is used to receive the sunlight reflected and reflected by the reflecting unit. The receiving unit and the reflecting unit face each other. According to the position and the time of the reflecting unit, the controlling device controls a rotation angle of the reflecting unit. The sensing device on the receiving unit may detect an inclination direction of the reflecting unit and output a first feedback signal to the controlling device to calibrate a direction of the reflecting unit facing the sun.

Abstract: A light source detection device includes first photo sensors disposed on a reference plane along a first direction and a control unit. Each first photo sensor has a first sensing surface for detecting a photo intensity of a light source to output a photo intensity signal. The first sensing surfaces are back to back or face to face. An included angle between a normal vector of one of the first sensing surfaces and a normal vector of the reference plane is equal to an included angle between a normal vector of another one of the first sensing surfaces and the normal vector of the reference plane. The normal vectors are coplanar. The control unit is adapted to receive the photo intensity signals and normalize the difference of the photo intensities of the light source sensed by the first photo sensors, so as to detect a position of the light source.

Abstract: A solar tracking and concentration device, including a reflecting unit, a receiving unit, a controlling device, and a plurality of photo sensors, is provided. The receiving unit is used to receive the sunlight reflected and reflected by the reflecting unit. The receiving unit and the reflecting unit face each other. The receiving unit is adapted to move along a first direction. According to the position and the time of the reflecting unit, the controlling device controls a rotation angle of a support element and controls a first moving position of the receiving unit moving along the first direction, in which the support element supports the reflecting unit and the receiving unit. The photo sensors are used to detect the sunlight reflected by the reflecting unit to the receiving unit, and are adapted to output a first feedback signal to calibrate a direction of the receiving unit facing the reflecting unit.

Abstract: A solar energy system includes a reflecting unit, a heat absorber and a first solar panel. The reflecting unit having a photovoltaic cell with a first energy band gap and a reflecting surface reflects or focuses sunlight. The reflecting unit converts the sunlight with a wavelength shorter than or equal to x nm into electric energy according to the first energy band gap, and reflects or focuses the sunlight with a wavelength longer than x nm onto the heat absorber and the first solar panel. The heat absorber converts the sunlight that has a wavelength longer than or equal to y nm and is reflected by the reflecting unit into thermal energy. The first solar panel having a photovoltaic cell with a second energy band gap converts the sunlight penetrating the heat absorber and having a wavelength shorter than or equal to z nm into electric energy.

Abstract: A proprietary portable audio player system for protecting digital content copyrights, which includes a proprietary portable audio player, a web access interface, and an online music server. The proprietary portable audio player has a hardware unique device identity. The proprietary portable audio player has a playback token acquirement mode and uses a first transmission medium to link with the online music server to thereby obtain a playback token for a corresponding music file playback. The online music server pre-stores a plurality of music files with compression formats, a plurality of playback tokens, and a mapping table. When a playback token signal from the web access interface is received, the online music server accordingly issues a playback token corresponding to a specific music file, updates the mapping table, and sends the playback token to the proprietary portable audio player through the first transmission medium.

Abstract: A portable electronic device includes a first body, a second body and a sliding positioning device. The first body includes a first operation area and a second operation area. The second body is slidable relative to the first body. The sliding positioning device is connected to the first body and the second body to position the second body at a plurality of locations relative to the first body. The second body hides the second operation area and exposes the first operation area when the second body is located at one of the locations.

Abstract: A Universal Information Code (UIC) resolves the encoding limitation associated with the known 2D bar code format. The UIC includes at least a type field and an index field. The type field indicates application type and format of other fields. The index field provides an index to access a website, categories of information, keyword of information, index or link to associated information and expansion information. The UIC further includes optionally a text description field and an authorization field. The text description field can be used to include a textual description of the website. The authorization field can be used to store password or public key. A mobile terminal device equipped with camera can fetch an image of the 2D bar code in UIC format and then extract related fields for interactive information exchange with a database.

Abstract: A portable electronic device includes a first body, a second body and a sliding positioning device. The first body includes a first operation area and a second operation area. The second body is slidable relative to the first body. The sliding positioning device is connected to the first body and the second body to position the second body at a plurality of locations relative to the first body. The second body hides the second operation area and exposes the first operation area when the second body is located at one of the locations.

Abstract: A portable electronic device having a sliding keyboard includes a first body, a second body and a sliding positioning device. The first body includes a keyboard area and a plurality of hot keys. The second body is slidingly disposed on the first body. The sliding positioning device is connected to the first body and the second body to position the second body at a plurality of locations relative to the first body. The second body hides the hot keys and exposes the keyboard area when the second body is located at one of the locations.

Abstract: The invention discloses a spiral electrical connection device and a slide-type electronic device therewith. The slide-type electronic device includes a base, a cover, and the spiral electrical connection device. The cover is slidably connected to the base. The spiral electrical connection device includes an electrical connection member having a first end and a second end and two connecting portions. The two connecting portions are connected to the first end and the second end of the electrical connection member, respectively. The connecting portions are electrically connected to each other via the electrical connection member, and they are connected to the cover and the base, respectively. The electrical connection member winds around a winding direction to the first end. When the cover moves away from the base, the electrical connection member extends. When the cover moves toward the base, the electrical connection member gathers around.

Abstract: A solar tracking and concentration device, including a reflecting unit, a receiving unit, a controlling device, and a plurality of photo sensors, is provided. The receiving unit is used to receive the sunlight reflected and reflected by the reflecting unit. The receiving unit and the reflecting unit face each other. The receiving unit is adapted to move along a first direction. According to the position and the time of the reflecting unit, the controlling device controls a rotation angle of a support element and controls a first moving position of the receiving unit moving along the first direction, in which the support element supports the reflecting unit and the receiving unit. The photo sensors are used to detect the sunlight reflected by the reflecting unit to the receiving unit, and are adapted to output a first feedback signal to calibrate a direction of the receiving unit facing the reflecting unit.

Abstract: A light source detection device includes first photo sensors disposed on a reference plane along a first direction and a control unit. Each first photo sensor has a first sensing surface for detecting a photo intensity of a light source to output a photo intensity signal. The first sensing surfaces are back to back or face to face. An included angle between a normal vector of one of the first sensing surfaces and a normal vector of the reference plane is equal to an included angle between a normal vector of another one of the first sensing surfaces and the normal vector of the reference plane. The normal vectors are coplanar. The control unit is adapted to receive the photo intensity signals and normalize the difference of the photo intensities of the light source sensed by the first photo sensors, so as to detect a position of the light source.

Abstract: A solar energy system includes a reflecting unit, a heat absorber and a first solar panel. The reflecting unit having a photovoltaic cell with a first energy band gap and a reflecting surface reflects or focuses sunlight. The reflecting unit converts the sunlight with a wavelength shorter than or equal to x nm into electric energy according to the first energy band gap, and reflects or focuses the sunlight with a wavelength longer than x nm onto the heat absorber and the first solar panel. The heat absorber converts the sunlight that has a wavelength longer than or equal to y nm and is reflected by the reflecting unit into thermal energy. The first solar panel having a photovoltaic cell with a second energy band gap converts the sunlight penetrating the heat absorber and having a wavelength shorter than or equal to z nm into electric energy.

Abstract: A solar tracking device including a solar panel, an orientation control device, and an inclination sensing device is provided. The solar panel is suitable for converting solar energy into electric energy. The orientation control device controls an orientation of the solar panel according to the position and time of the solar panel. The inclination sensing device is disposed on the solar panel for detecting an inclination direction of the solar panel. The inclination sensing device is suitable for outputting a feedback signal to the orientation control device to adjust the orientation of the solar panel. The solar tracking device has a simple tracking mechanism because of a simple feedback mechanism of the inclination sensing device.

Abstract: A connector includes a main body, two fixing arms and a plurality of signal transmission pins. The main body has a socket and an outer wall, wherein the outer wall surrounds the socket. The two fixing arms are connected to two sides of the outer wall for attaching the main body to a circuit board. The signal transmission pins are connected to the outer wall for electrically connecting with the circuit board.

Abstract: A portable electric device with a rotatable image-capturing function includes a casing, a main circuit board and a touch pen. The main circuit board is disposed in the casing. The touch pen has a pen body and an image-capturing module disposed at one end of the pen body. The pen body is detachably coupled to casing. The image-capturing module and the main circuit board are electrically connected through the other end of the pen body.

Abstract: A storage device includes a housing with an opening at the front end for receiving at least one storage container pushed in which can store a storage element, one end of the storage container being provided with a positioning portion; at least one engaging member being jointed rotatably at the rear end of the housing, one end of each engaging member being provided with a connecting portion for engaging the positioning portion of the storage container pushed into the inner of the housing to fix the storage container, and another end of each engaging member provided with a pushing portion. When users turn the engaging member, the connecting portion releases the positioning portion and then the pushing portion pushes the rear end of the storage container subsequently to eject the storage container outwardly.

Abstract: A portable electronic device having a sliding keyboard includes a first body, a second body and a sliding positioning device. The first body includes a keyboard area and a plurality of hot keys. The second body is slidingly disposed on the first body. The sliding positioning device is connected to the first body and the second body to position the second body at a plurality of locations relative to the first body. The second body hides the hot keys and exposes the keyboard area when the second body is located at one of the locations.