Abstract: In a method for unlocking an electronic device, a plurality of icons are preset and an icon is designated to be an unlocking icon for unlocking the electronic device. When the electronic device is locked, the icons are moving on the display device, and the moving icons is highlighted one by one according to a moving direction and a time interval. When a highlighted icon is touched and the highlighted icon is the unlocking icon, the electronic device is unlocked.

Abstract: In a method for unlocking an electronic device, a plurality of icons are preset and an icon is designated to be an unlocking icon for unlocking the electronic device. When the electronic device is locked, the icons are moving on the display device, and the moving icons is highlighted one by one according to a moving direction and a time interval. When a highlighted icon is touched and the highlighted icon is the unlocking icon, the electronic device is unlocked.

Abstract: An electronic device and a method are used to operate a locked touch screen of the electronic device. A password of unlocking the locked touch screen is set and stored into a storage device of the electronic device. When touches are generated on the touch screen, a count of touch points of each of the touches is obtained to generate a number queue. The number queue is compared with the password stored in the storage device, and the touch screen is unlocked when the number queue is identical to the password.

Abstract: The invention provides a buffer management apparatus coupled between a memory and a plurality of circuit blocks accessing the memory. In one embodiment, the buffer management apparatus comprises an arbiter, a plurality of buffers, and a multiplexer. The arbiter selects a plurality of owners for the buffers from the circuit blocks, passes a plurality of access request signals generated by the owners to the corresponding buffers, and delivers a plurality of access response signals retrieved from the corresponding buffers to the owners in reply to the access request signals. The multiplexer alternately retrieves the access request signals from the buffers to generate a memory access signal delivered to a memory controller of the memory, receives a memory response signal generated by the memory controller in reply to the memory access signal, and distributes the memory response signal to the buffers as the access response signals.

Abstract: A system and method for encrypting an electronic file in a mobile electronic device reads bytes of the electronic file from a cache of a memory system and divides the bytes into a plurality of byte lines. The system and method further assigns a numerical cipher to each byte line and searches a position of each numerical cipher in a corresponding byte line. Furthermore, the system and method encrypt each byte line by inserting one or more random bytes into each byte line, and generates an encrypted electronic file by combining all the encrypted byte lines.

Abstract: A data processing system is disclosed. The system includes a processor, a transformer, a first memory buffer, a second memory buffer, a first filter, and a second filter. An obtained transmission signal symbol is first transformed to first data. The first memory buffer stores the first data. The processor obtains peak data based on the first data according to a predetermined threshold. The transformer transforms the peak data to second data and stores the second data in the second memory buffer. The first filter filters the second data to determine reserved data of the second data and removes the reserved data from the second data to generate third data. The transformer transforms the third data to fourth data and stores the fourth data in the second memory buffer. The processor merges the first and fourth data to generate fifth data. The second filter filters the fifth data based on the transmission signal symbol and a previously obtained transmission signal symbol.

Abstract: An error correction device is provided. When an error of an incorrect data group stored in a memory is detected, a memory controller of the error correction device executes a burst read, burst write or burst read-modify-write (RMW) operations to the memory instead of the conventional single read-modify-write (RMW) operation, thereby reducing the occupied bandwidth of the memory.

Abstract: An optical storage medium recording apparatus is provided a data preparing and ECC encoding circuit that both prepares the data by combining different categories of data into data sequences in accordance with a data layout on the optical storage medium and encodes the combined data. The encoded data is temporarily stored in a data buffer, and subsequently successively read out by a recording circuit for recording onto the optical storage medium according to the data layout. For a Blu-ray disc recording apparatus, the data preparing and ECC encoding circuit includes a LDC/BIS encoder for generating long distance error correction codes (LDC) and burst indicator subcodes (BIS) from the combined data to form LDC and BIS encoded data, which is temporarily stored in the data buffer. The recording circuit includes an interleave circuit for interleaving the LDC and BIS data to form physical clusters for recording on the disc.

Abstract: A reproduction data recording method for an optical storage medium. The method comprises storing additional data to a first temporary region of a memory device; reading the first recorded data from the optical storage medium and storing the first recorded data to the first temporary region; reading a data segment of the second recorded data from the optical storage medium and storing the data segment to a second temporary region of the memory device; reading the first recorded data from the first temporary region and the data segment from the second temporary region, and decoding the first recorded data and the data segment to confirm accuracy of the first recorded data; reading the first recorded data and the additional data from the first temporary region, and encoding the first recorded data and the additional data to generate encoded data; and writing the encoded data to the optical storage medium.

Abstract: A method and device for error analysis particularly adoptable for a recording medium such as an optical disc are disclosed. The present invention executes an encoding-like operation such as an interleaving operation to error flags during reproducing data from the optical disc, so as to obtain number and distribution of the errors on the disc.

Abstract: An error correction device is provided. When an error of an incorrect data group stored in a memory is detected, a memory controller of the error correction device executes a burst read, burst write or burst read-modify-write (RMW) operations to the memory instead of the conventional single read-modify-write (RMW) operation, thereby reducing the occupied bandwidth of the memory.

Abstract: A system for transferring data read from a data storage medium. The system comprises a memory unit, a controller, a memory management logic, and an output interface. The memory unit stores the data. The controller compares at least one address of the data with at least one defect address and generates a defect notification signal indicating the comparison result. The memory management logic calculates the amount of the data stored in the memory unit for transfer and generates a calculation signal according to the amount of the data and the defect notification signal received from the controller. The output interface retrieves the data from the memory unit and transfers the retrieved data according to the calculation signal received from the memory management logic.

Abstract: A data managing method for an optical disc drive writing data into an optical disc having defects is provided. The optical disc has a user data area and a spare area. The optical disc drive includes a first buffering space and a second buffering space. The data managing method includes: when the first buffering space receives a data corresponding to a defect, not suspending the first buffering space from receiving the user data, and transferring the data, corresponding to the defect and in the first buffering space, to the second buffering space; and when data amount in the second buffering space reaches a predetermined value, suspending the optical disc drive from writing data in the first buffering space into the user data area, and driving the optical disc drive to write data in the second buffering space into the spare area.

Abstract: An error correction device is provided. When an error of a data group stored in a dynamic random access memory (DRAM) device is detected, a memory controller of the error correction device executes a burst read and write, burst write or burst read-modify-write (RMW) operations to the DRAM instead of the conventional single read-modify-write (RMW) operation, thereby reducing the occupied bandwidth of the DRAM.

Abstract: The present invention discloses a method for performing a defective-area management adaptive to a slipping replacement algorithm in an optical media with segmented sector/blocks, by either keeping buffering a read user data of the sector/block to a buffer memory, regardless of the read sector/block is defective, or keeping buffering the read user data to two different memories based on whether the sector/block is defective, thereby simplifying the complicated steps due to absence of interruption of data buffering, and therefore raising an operating performance.

Abstract: Apparatuses and methods for defect replacement when an optical storage medium is read are provided. When the defect management is LOW, a pick-up head retrieves a set of data from the optical storage medium; a defect detector detects whether there is a defect in the set; if yes, a processor determines whether a replacement for the defect is in the set; and if yes, an interface transmits the replacement from the set.

Abstract: Blu-Ray reading and writing methods are provided. In a reading procedure, a first plurality of recording frames are sequentially read from a Blu-Ray disc and stored in a memory array along a first direction to assemble a first LDC block comprising a plurality of data lines arranged along a second direction. A second plurality of recording frames are simultaneously read and stored in the memory array along the second direction to assemble a second LDC block comprising a plurality of data lines arranged along the first direction while the data lines in the first LDC block are sequentially decoded and output.

Abstract: The invention provides a buffer management apparatus coupled between a memory and a plurality of circuit blocks accessing the memory. In one embodiment, the buffer management apparatus comprises an arbiter, a plurality of buffers, and a multiplexer. The arbiter selects a plurality of owners for the buffers from the circuit blocks, passes a plurality of access request signals generated by the owners to the corresponding buffers, and delivers a plurality of access response signals retrieved from the corresponding buffers to the owners in reply to the access request signals. The multiplexer alternately retrieves the access request signals from the buffers to generate a memory access signal delivered to a memory controller of the memory, receives a memory response signal generated by the memory controller in reply to the memory access signal, and distributes the memory response signal to the buffers as the access response signals.

Abstract: Apparatuses and methods for defect replacement when an optical storage medium is read are provided. When the defect management is LOW, a pick-up head retrieves a set of data from the optical storage medium; a defect detector detects whether there is a defect in the set; if yes, a processor determines whether a replacement for the defect is in the set; and if yes, an interface transmits the replacement from the set.

Abstract: A data processing system is disclosed. The system includes a processor, a transformer, a first memory buffer, a second memory buffer, a first filter, and a second filter. An obtained transmission signal symbol is first transformed to first data. The first memory buffer stores the first data. The processor obtains peak data based on the first data according to a predetermined threshold. The transformer transforms the peak data to second data and stores the second data in the second memory buffer. The first filter filters the second data to determine reserved data of the second data and removes the reserved data from the second data to generate third data. The transformer transforms the third data to fourth data and stores the fourth data in the second memory buffer. The processor merges the first and fourth data to generate fifth data. The second filter filters the fifth data based on the transmission signal symbol and a previously obtained transmission signal symbol.