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:
A converting module for converting a first analog voltage into a digital output value includes a comparator for comparing the first analog voltage with a threshold voltage and generating a comparison result, the threshold voltage corresponding to a first group of digits containing at least one digit. A subtracting circuit generates a second analog voltage by subtracting the threshold voltage from the first analog voltage if the comparison result indicates that the first analog voltage is greater than or equal to the threshold voltage. An analog-to-digital converter converts the second analog voltage into a second group of digits and concatenates the first group of digits and the second group of digits to form the digital output value.
Abstract:
An analog-to-digital converter includes a capacitor for storing charge and a current source for flowing current through the capacitor for charging the capacitor. The analog-to-digital converter also contains a switch for controlling flow of current from the current source to the capacitor, a comparator for outputting a first comparison value when an analog input voltage is approximately equal to a voltage across the capacitor, and a timer for calculating a charging period of time needed for the voltage across the capacitor to become equal to the analog input voltage. A controller is used for controlling operation of the switch, for starting the timer when the switch electrically connects the current source to the capacitor for charging the capacitor, for stopping the timer when the comparator outputs the first comparison value, and for converting the charging period of time calculated by the timer into a digital output voltage.
Abstract:
A method is provided to prevent flash memory in a computer system from being miswritten. According to this method, a control parameter records the normal paths of a process module. Then a judge module decides whether or not the flash memory is to be written. When the judge module decides the flash memory is to be written, a prepare module conducts preparations for the flash memory. Then a check module is provided to confirm the normal paths from the process module in response to the control parameter, and a write module is provided to write the flash memory when the check module confirms the normal paths from the process module. An error module may be provided to restart the process module or the computer system or provide a warning signal when the check module does not confirm the normal paths from the process module.
Abstract:
A method for writing software into a programmable memory within a peripheral apparatus initiated by a host computer is provided. The host computer issues a software write command and the peripheral apparatus includes a microcontroller connected to the host computer via an interface. A data line and an address line are provided to connect the microcontroller and the programmable memory. The method comprises the following steps: (1) providing a supervisory program within the programmable memory or the microcontroller, the supervisory program including a software write instruction; (2) the microcontroller executing the software write instruction and down-loading the software from the host computer via the interface; and (3) via the data and address line, performing the write operation of the control software to the programmable memory.
Abstract:
A method for controlling speed of a spindle motor within a disk player is provided. The spindle motor drives a disk thereon and the disk player includes a control circuit. The method comprises the steps of: (1) set speed of the spindle motor to operate at a Nominal speed; (2) test if disk data access operation has not occurred for a predetermined amount of time; (3) if result of step 2 is YES, set the spindle motor running at a speed which is between zero and the Nominal speed.
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 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:
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.