Abstract: The disclosure relates to a signal transmitting apparatus. The signal transmitting apparatus includes a conductor, a first and a second circuit boards, and a signal transmitting medium that is electrically interconnected between the first circuit board and the second circuit board. The signal transmitting medium includes a ground wire and an insulating layer wrapping the ground wire, wherein at least an end portion of the ground wire is not wrapped by the insulating layer and is bent to overlap the insulating layer and electrically connected to the conductor via a conductive adhesive material so as to conduct the electrostatic charges accumulated in the signal transmitting medium to the conductor as a ground.

Abstract: A flexible printed circuit for electrically connecting a disk tray to a chassis of an optical disk drive has a base layer, a copper layer, and a cover layer. The copper layer is attached to the base layer by a first adhesive layer, and has a plurality of separate electrical wires and a ground area. The cover layer has a cutout area corresponding to the ground area, and is attached to the copper layer by a second adhesive layer. A third adhesive layer is electrically conductive and used for attaching the cover layer to the chassis of the optical disk drive. Wherein the third adhesive layer is electrically connected to the ground area of the copper layer through the cutout area, the static charges accumulated on the copper layer will be discharged to the chassis.

Abstract: A disc changer comprises a housing, a disc box, a selecting mechanism, an elevating mechanism, and a driving device. The housing has at least one oblique slot in each side wall. Projections of the oblique slots are interlaced to each other. The disc box fabricated in the housing has a plurality of trays stacking vertically. The selecting mechanism is used for moving vertically to a horizontal position of a predetermined tray of the disc box for pulling out the predetermined tray from the disc box. The elevating mechanism is fabricated in the housing and comprises two slides and a transmission shaft. Each slide is attached to the oblique slot with at least a slide protrusion. Each slide slides back and forth along the respective side wall. The slide protrusion of each slide slides back and forth along the attached oblique slot. By this way, the selecting device can move up and down inside the housing to reach the predetermined tray of the disc box.

Abstract: A method of designing a look-up table of a finite-state encoder, applied to a finite-state encoder, comprises steps of: determining a bit length of a legal output codeword derived from the finite-state encoder and a restrict condition; collecting a plurality of legal output codeword satisfied the restrict condition; determining a bit length of an input codeword derived to the finite-state encoder according to the amount of the plurality of the legal output codeword; determining the amount of states in the finite-state encoder according to the bit length of the input codeword and the bit length of the legal output codeword; dividing the plurality of legal output codeword to a plurality of subset according to the amount of the states in the finite-state encoder and a specific mathematic equation; determining the amount of the legal output codewords in the plurality of subset; and, completing the look-up table through determining a relationship among a present state, a previous state, and a corresponding subset,

Abstract: A coupling mechanism for securing an audio/video player onto a flat panel display includes a casing, a hanger assembly and a connection member. The casing is used for supporting the audio/video player in an upright manner. The hanger assembly is attachable to the flat panel display. The connection member rotatably couples the casing to the hanger assembly so that an orientation of the audio/video player relative to the flat panel display is adjustable.

Abstract: An inner ring signal and an outer ring signal according to specific patterns formed on the label side of the optical disc are generated. Timing starts when the outer ring signal reveals the end of a positioning pattern and stops to obtain a timing value when the inner ring signal reveals the start of a square wave defining a specified spoke. A starting spoke is defined according to the inner ring signal and the specified spoke. A deviation bit value is calculated according to the timing value and a bit number of a data to be marked on a certain track of the optical disc. The data is rotated according to the deviation bit value, and then marked on the certain track, starting with the starting spoke.

Abstract: An auxiliary operation interface of a digital recording/reproducing apparatus includes a targeting item, a switching button set and an audio prompt generator. The targeting item is optionally triggered to have the digital recording/reproducing apparatus execute a selected function. The audio prompt generator is enabled to generate an audio prompt when the targeting item is triggered. The audio prompt generator is optionally enabled or disabled by an operation of the switching button set.

Abstract: An open-loop test procedure under high rotating speed is entered to compute a first TE crossing track number. The first TE crossing track number greater than a first threshold indicates an unbalanced disc and results in a low-speed reading procedure. On the other hand, the first TE crossing track number less than a second threshold value that is less than the first threshold value indicates a normal disc and results in a high-speed reading procedure. When the first TE crossing track number lies between the first and second threshold values, another open-loop test procedure under low rotating speed is entered to compute a second TE crossing track number. A low-speed reading procedure is performed when the second TE crossing track number is greater than a third threshold value, and a high-speed reading procedure is performed when the second TE crossing track number is less than the third threshold value.

Abstract: The disclosure is a data modulation/encryption method used in a holographic storage system. The data modulation method includes steps of: receiving an original data sequence; arraying the original data sequence to a first matrix with n×n dimensions; multiplying the first matrix by a sparse matrix to generate a second matrix with n×n dimensions; executing a modulating and mapping procedure for generating a third matrix with (n+1)×n or n×(n+1) dimensions, wherein the third matrix is composed of a modulation part and an extra part; and, storing the third matrix; wherein the sparse matrix is a binary matrix, a total number of elements in each row of the sparse matrix is odd, all rows of the sparse matrix have a same even number of bit 1, all columns of the sparse matrix have a same even number of bit 1, and the sparse matrix has an inverse matrix.

Abstract: An optical disc reading apparatus includes a main body, a first disc entrance and a second disc entrance. The main body has a disc-reading room therein for accommodating the optical disc. The first disc entrance is arranged on a first face of the main body for providing the optical disc with a first approach to the disc-reading room. The second disc entrance is arranged on a second face of the main body different from the first face for providing the optical disc with a second approach to the disc-reading room.

Abstract: A laser power control system and method used in an optical disc writer. According to a write power value, the laser power control system drives a laser to output a write power through a first channel. According to a proportional value, the laser power control system drives the laser to output an overdrive power through a second channel. By using a close loop control of the laser power control system, the write power and the overwrite power are independent of the temperature changes.

Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy and a first write power; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table by measuring a plurality of Pits and Lands with different time lengths in the test pattern; and generating a second timing parameter set by adjusting a first timing parameter set of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table.

Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy, a first write power, and a first target ? value; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table by measuring a plurality of Pits and Lands with different time lengths in the test pattern; generating an updated timing parameter set by adjusting a timing parameter set of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table; and generating an updated target ? value according to the updated timing parameter set.

Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy and a first write power; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table through measuring a plurality of Pits and Lands with different time lengths in the test pattern; and generating a second overdrive power by adjusting a first overdrive power of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table.

Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy and a first write power; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table by measuring a plurality of Pits and Lands with different time lengths in the test pattern; generating an updated timing parameter set by adjusting a timing parameter set of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table; generating an updated overdrive power by adjusting an overdrive power of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table; and defining a second write strategy according to the updated timing parameter set and the updated overdrive power.

Abstract: A method is disclosed for adjusting the rotational speed of a disk player based on a calculated variable. The method increases the rotational speed of the disk player when the calculated variable is greater than a first threshold and decreases the rotational speed of the disk player when the calculated variable is less than a second threshold.

Abstract: A visualized indicator is applied to a slot-in optical reproducing apparatus. By providing a display window on the housing of the apparatus and a visualized indicator inside the housing, a first portion or a second portion of the visualized indicator can be alternatively shown through the display window to tell if a disk is inside the apparatus or not.

Abstract: In a method for determining defective blocks of an optical disc, a defect-detection procedure for each block of the optical disc is performed. After the defect-detection procedure, a preliminary defective group of the optical disc is realized. Subsequently, the track number between two selected defective blocks of the preliminary defective group are detected. When the track number is less than a predetermined number, the blocks lying in a linear region including the two selected blocks are defined as defective blocks in addition to all defective blocks included in the preliminary defective group.

Abstract: The present invention discloses a method for dynamically detecting writing quality of a recordable optical disc. According to the method, firstly a current detecting position located on a program area of the recordable optical disc is set. Then the recordable disc drive proceeds data recording in the program area with an optimal write power. The recordable disc drive paused data recording when a recording position exceeds or is equal to the current detecting position. Then the recordable disc drive reproduces pre-recorded data in the tracks of the recordable optical disc to perform OPC for modifying the optimal write power and calculating a jitter value. Thereafter a following detecting position is modified based on the jitter value and data recording is restarted in the program area with the modified optimal write power until the recording position exceeds or is equal to the modified following detecting position.

Abstract: A method of detecting and compensating fail pixels in a holographic storage system. The method includes steps of: providing a plurality of image frames to show on a data plane for all pixels on the data plane being capable of outputting a light state or a dark state; sequentially recording the image frames into a storage medium; detecting the image frames by using a detecting apparatus for all pixels on the detecting apparatus being capable of outputting sensing signals corresponding to the light state and the dark state; defining a sensing difference value, which is a difference of the sensing signal outputting the light state and the dark state generated by one pixel; comparing the sensing difference value with a threshold value; and defining the corresponding pixel is a fail pixel if the sensing difference value is smaller than the threshold value.