Patent application number | Description | Published |
20080198706 | BUFFER MANAGEMENT METHOD AND OPTICAL DISC DRIVE - An optical disc drive is provided, mainly comprising a buffer, a processor and a driving module for accessing an optical disc. The optical disc drive receives a plurality of write commands. Each write command comprises a data block and a destination address. The buffer buffers data blocks to be recorded to the optical disc with corresponding write commands in either a random mode or a sequential mode. The processor schedules a recording operation based on the write commands, and selectively switches the buffer to the random mode or to the sequential mode based on arrangements of data blocks buffered in the buffer. The driving module is controlled by the processor to perform the recording operation, whereby the data blocks are recorded to the optical disc when a start recording condition is met. Specifically, the start recording condition varies with the random or sequential modes. | 08-21-2008 |
20080198709 | RANDOM ACCESS CONTROL METHOD AND OPTICAL DISC DRIVE - A random access control method is provided, implemented in an optical disc drive for recording data to an optical disc. In the optical disc drive, a buffer stores a plurality of write commands each associated with a data block bound to a destination address. A processor controls the buffer to build a disc write task from the write commands in which addresses are organized in order. A drive unit is controlled by the processor, performing a recording operation to record the data blocks to the optical disc according to the disc write task; wherein the processor further controls the drive unit to verify the recorded data blocks after completing the recording operation. | 08-21-2008 |
20080201522 | BUFFER MANAGEMENT METHOD AND OPTICAL DISC DRIVE - A buffer management method is provided, particularly adaptable in an optical disc drive to access an optical disc. One or more data blocks are recorded to the optical disc in response to received write commands. Data blocks corresponding to the write commands are first buffered in a buffer of the optical disc drive. Thereafter, one or more write tasks may be organized based on the buffered write commands, each associated with a group of data blocks having consecutive destination addresses. A recording operation can be scheduled based on those write tasks, and the recording operation is performed to record the data blocks to the optical disc. | 08-21-2008 |
20090013192 | INTEGRITY CHECK METHOD APPLIED TO ELECTRONIC DEVICE, AND RELATED CIRCUIT - An integrity check method applied to an electronic device includes: fetching at least one portion of external data into a specific memory, where the external data is stored within the electronic device; during fetching the portion of the external data into the specific memory, checking whether the size of the fetched data in the specific memory reaches a predetermined value, where the predetermined value is less than the total size of the external data; and when the size of the fetched data in the specific memory reaches the predetermined value, enabling an integrity check of the fetched data. | 01-08-2009 |
20090327750 | SECURITY SYSTEM FOR CODE DUMP PROTECTION AND METHOD THEREOF - A security system for code dump protection includes a storage device, a processor, and a decryption unit. The storage device has a protected storage area storing at least an encrypted code segment. The processor is utilized for issuing at least one address pattern to the storage device for obtaining at least one information pattern corresponding to the address pattern. The decryption unit checks signal communicated between the processor and the storage device to generate a check result, and determines whether to decrypt the encrypted code segment in the protected storage area to generate a decrypted code segment to the processor according to the check result. | 12-31-2009 |
20100077120 | EMBEDDED SYSTEM AND INTERRUPTION HANDLING METHOD - An embedded system and an interruption handling method are provided. A plurality of interruption requests are received, and corresponding service routines are triggered with priority control. In the embedded system, a memory device comprises a plurality of service routines stored at different entry addresses, each related to an interruption request. A processor receives an enable signal to initialize one of the service routines through a branch instruction. A control unit buffers the interruption requests to schedule executions of corresponding service routines. When a specific service routine is to be executed, the control unit provides the branch instruction pointing to entry address of the specific service routine and asserts the enable signal to the processor, such that the processor executes the branch instruction to initialize the specific service routine. | 03-25-2010 |
20100214888 | RANDOM ACCESS CONTROL METHOD AND OPTICAL DISC DRIVER - A random access control method is provided, implemented in an optical disc drive for recording data to an optical disc. In the optical disc drive, a buffer stores a plurality of write commands each associated with a data block bound to a destination address. A processor controls the buffer to build a disc write task from the write commands in which addresses are organized in order. A drive unit is controlled by the processor, performing a recording operation to record the data blocks to the optical disc according to the disc write task; wherein the processor further controls the drive unit to verify the recorded data blocks after completing the recording operation. | 08-26-2010 |
20120233362 | BUFFER MANAGEMENT METHOD AND OPTICAL DISC DRIVE - A buffer management method operates by receiving a read command, wherein the read command comprises a read destination address for designating an associated area of a storage media; receiving write commands, wherein each of the write command comprises a data block and a write destination address for designating an associated location of the storage media to store the data block; buffering the data blocks of the write commands in a buffer; generating a latest list, wherein the latest list comprises a plurality of buffer indexes indicating buffer areas for storing the data blocks associated with the latest certain amount of received write commands; and determining whether the read destination address of the read command is associate with the latest list. | 09-13-2012 |
20130318363 | SECURITY SYSTEM FOR CODE DUMP PROTECTION AND METHOD THEREOF - A security system for code dump protection includes a storage device, a processor, and a decryption unit. The storage device has a protected storage area storing at least an encrypted code segment. The processor is utilized for issuing at least one address pattern to the storage device for obtaining at least one information pattern corresponding to the address pattern. The decryption unit checks the address pattern and the information pattern to generate a check result, and determines whether to decrypt the encrypted code segment in the protected storage area to generate a decrypted code segment to the processor according to the check result. | 11-28-2013 |