Abstract:
A flash memory apparatus with serial interface is disclosed. The flash memory apparatus includes a selector, a core circuit and a programmable data bank. The selector decides whether or not to connect one of a write protect pin and a hold pin to a reset signal line. The core circuit receives a reset signal transmitted by the reset signal line and activates a reset operation accordingly. A selecting data is written into the programmable data bank through a programming method and the programmable data bank outputs the selecting data to serve as a selecting signal.
Abstract:
A flash memory accessing method is provided. The method includes: firstly, dividing the flash memory into a primary storage area and a backup storage area, wherein the difference between a first start address of the primary storage area and a second start address of the backup storage area is an offset address not equal to zero; reading the flash memory according to a address pointer equal to the first start address so as to obtain the boot data; making the electronic apparatus perform a boot sequence according to the boot data; then, detecting whether the boot sequence is normal or not, and when the boot sequence is abnormal, providing the flash memory with changing the read pointer to the second start address according to an offset address to read the backup boot data.
Abstract:
A flash memory apparatus with serial interface is disclosed. The flash memory apparatus includes a selector, a core circuit and a programmable data bank. The selector decides whether or not to connect one of a write protect pin and a hold pin to a reset signal line. The core circuit receives a reset signal transmitted by the reset signal line and activates a reset operation accordingly. A selecting data is written into the programmable data bank through a programming method and the programmable data bank outputs the selecting data to serve as a selecting signal.
Abstract:
A keyswitch includes a casing, a key cap and a support device rotatably disposed between the key cap and the casing. One of the casing and the key cap has a first magnetic area and the support device has a second magnetic area corresponding to the first magnetic area. When the key cap is not pressed, a magnetic attraction force between the first and second magnetic areas keeps the key cap at a non-pressed position. When the key cap is pressed by an external force such that the second magnetic area moves away from the first magnetic area, the key cap moves from the non-pressed position toward the pressed position. When the external force is removed, the second magnetic area moves toward the first magnetic area due to the magnetic attraction force such that the key cap moves from the pressed position toward the non-pressed position.
Abstract:
A keyswitch includes a casing, a key cap and a support device rotatably disposed between the key cap and the casing. One of the casing and the key cap has a first magnetic area and the support device has a second magnetic area corresponding to the first magnetic area. When the key cap is not pressed, a magnetic attraction force between the first and second magnetic areas keeps the key cap at a non-pressed position. When the key cap is pressed by an external force such that the second magnetic area moves away from the first magnetic area, the key cap moves from the non-pressed position toward the pressed position. When the external force is removed, the second magnetic area moves toward the first magnetic area due to the magnetic attraction force such that the key cap moves from the pressed position toward the non-pressed position.
Abstract:
The track-detecting device includes a track ball and a detection module. The track ball includes a plurality of first magnetic parts and a plurality of second magnetic parts. The magnetism of the first magnetic parts is opposite to that of the second magnetic parts. The detection module is adjacent to the track ball for detecting the variations of the magnetic forces in two directions. The variations of the magnetic forces are transformed to electric signals then output for determining the moving directions and the displacement of the track ball.
Abstract:
An electronic device and an adjustment mechanism thereof. The electronic device includes a housing, an adjusting member, a lifting assembly, and a driving assembly. The adjusting member is moveably connected to the housing. The lifting assembly connects the adjusting member and the housing to move the adjusting member with respect to the housing. The driving assembly connects the lifting assembly and the housing to drive the lifting assembly to move the adjusting member. Thus, the housing is adjusted.
Abstract:
The present invention relates to a brushless motor system. The brushless motor system has a brushless motor, a motor driver, and at least one sensing circuit. The brushless motor has a rotor, and the sensing circuit is used to detect the rotor position. The sensing circuit has a Hall sensor and two capacitor devices. The Hall sensor has two output ports. As the rotor rotates, the Hall sensor will generate a sensing signal at each of the two output ports. Each of the capacitor devices is connected in series to one of the two output ports of the Hall sensor, and the two capacitor devices are used to filter out DC biases in the two sensing signals. The motor driver is connected to the two capacitor devices for driving the rotor of the brushless motor according to the two sensing signals from the two capacitor devices.
Abstract:
A flexible flat cable and a disk drive using the same are provided. The flexible flat cable is configured to suppress an electromagnetic interference (EMI) generated by a signal transmitted by it. The flexible flat cable includes a main body and a metal layer. The metal layer is disposed on the main body along the direction the signal is transmitted. The width of the metal layer along the direction, perpendicular to the direction the signal being transmitted, is smaller than the width of the main body.
Abstract:
This invention relates to a optical storage carrier player cover-locking mechanism and method, which provides a optical storage carrier player cover that can actuate a locked state to prevent a optical storage carrier from rotating as cover is being lifted up and a lifting-up state for putting or removing a CD. This CD cover arranges: a driving element that connects to the CD driving apparatus and makes it rotate, a controller that adjusts rotation speed of the driving element, and a switch that can touches off the controller to proceed a controlled motion with predetermined rotation speed. By touching off the switch, the controller can detect the rotation speed of the driving element. By comparing the detected rotation speed with a predetermined speed in the controller, when rotation speed is higher than the predetermined speed, the controller generates a signal to the driving element to reduce the rotation speed of motor. And when rotation speed is lower than the predetermined speed, a signal is generated to actuate a cover-lifting motion to the CD cover that is then in an open state.