Silicon Motion, Inc.

Chunghwa Picture Tubes, Ltd.

Conary Enterprise Co., Ltd.

Arima Lasers Corporation

Ching-Hui Lin

Tsung-Chieh Yang

Yang-Chih Shen

Chun-Chieh Kuo

Kuang-Lang Chen

Hsu-Pin Kao

Yi-Sheng Yu

Shiuh-Bin Kao

Sheng-Chi Lee

Sheng-Wen Hsu

Chun-Hsu Lin

Chung-Wang Chou

Yuan-Chi Lin

Ken-Fu Hsu

Yi-Chia Shan

Kuo-Liang Yeh

Hui-Chen Lin

Hsien-Cheng Yen

Wen-Wei Lin

Ming-Hui Fang

Yao-Hung Lai

Ming-Cho Wu

Yen-Ting Shen

A flash memory controller for controlling a flash memory module includes a communication interface for receiving a first data and a second data; and a processing circuit for dynamically controlling a data writing mode of the flash memory module according to an amount of stored data in the flash memory module. If the amount of stored data in the flash memory module is less than a first threshold when the communication interface receives the first data, the processing circuit controls the flash memory module so that the first data is written into the first data block under an one-bit-per-cell mode. If the amount of stored data in the flash memory module is greater than the first threshold when the communication interface receives the second data, the processing circuit controls the flash memory module so that the second data is written into the second data block under a two-bit-per-cell mode.

Flash memory controller

The present invention provides a control method of the flash memory controller. In the control method, after receiving a deallocate command from a host device, the flash memory controller will update a valid page count table, a detailed valid page count table and/or a zone valid page count table according to deallocate command, for the flash memory controller to efficiently and quickly determine if any one of the zones does not have any valid data, so that the flash memory controller can recommend the host device to send a reset command to reset the zone.

Control method of flash memory controller and associated flash memory controller and storage device

The present invention provides a control method of a flash memory controller, wherein the flash memory controller is configured to access a flash memory module, and the control method includes the steps of: receiving a settling command from a host device to configure a portion space of the flash memory module as a zoned namespace; receiving a write command from the host device to write data corresponding a first zone into a plurality of blocks of the flash memory module, wherein an access mode chose by the flash memory controller is determined based on a size of each zone and a size of each block.

Control method for flash memory controller and associated flash memory controller and storage device

The present invention provides a control method of the flash memory controller. In the control method, by establishing a valid page count table, a detailed valid page count table and/or a zone valid page count table according to deallocate command from the host device, the flash memory controller can efficiently and quickly determine if any one of the zones does not have any valid data, so that the flash memory controller can recommend the host device to send a reset command to reset the zone. In addition, after receiving the reset command from the host device, the flash memory controller can use a garbage collection operation or directly put the blocks corresponding to the erased zone into a spare block pool, for the further use.

A control method is applied to a flash memory controller, which includes the following steps: creating a write time table, wherein the write time table records block numbers of blocks having data stored therein and corresponding first time and second time; referring to the write time table to determine whether there is at least one first block in the flash memory module whose first time is earlier than a first threshold, and if so, recording the at least one first block into an expired block table; referring to the write time table to determine whether there is at least one second block in the flash memory module whose second time is earlier than a second threshold, and if so, recording the at least one second block into the expired block table; and referring to the expired block table to perform an expired block recycling operation.

Control method for referring to expired block table to perform expired block recycling operation and associated flash memory controller and memory device

A control method of a flash memory controller, wherein the control method includes the steps of: when data is written to a page of any block of a flash memory module, recording a write time in the page; create a write time table, wherein the write time table records block numbers of blocks having data written therein and corresponding write time; compress the write time table to generate a compressed write time table, wherein the compressed write time table contains multiple time ranges and corresponding indexes, each index corresponds to a page of the flash memory module, and the page records block numbers of all blocks whose writing time is within the corresponding time range.

Control method for flash memory controller and associated flash memory controller and memory device

A laser module, comprising: a loading board; an edge emitting laser component arranged on the loading board, and the edge emitting laser component emits a first laser beam; a reflecting component arranged in front of the edge emitting laser component on the loading board for the first laser beam to be reflected vertically, and the edge emitting laser component and reflecting component become a laser emitting module; and a laser receiving module arranged closed to the edge emitting laser component on the loading board to receive the first laser beam reflected from above.

Laser module

A method for checking storage units of flash memory of flash memory device includes: writing data into storage units; and performing data read operation to read data from storage units to compare read data with written data to check whether data is correctly written into storage units, and data read operation includes: performing sequential read operation to sequentially select first storage unit and to read data from first storage unit according to serial order numbers; determining whether first storage unit is damaged; accumulating a number of damaged storage units if first storage unit is damaged; determining whether the number of damaged storage units is larger than first threshold number; and exiting sequential read operation and performing random read operation to read data of specific storage unit if the number of damaged storage units is larger than first threshold number.

Method for efficiently checking storage units of flash memory of flash memory device and corresponding electronic device executing the method

Growing community of inventors

Taipei, Taiwan

Ching-Hui Lin