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Guoqi
Guoqi Wu, Shenzhen CN
| Patent application number | Description | Published |
|---|---|---|
| 20110075861 | Method and Apparatus for Controlling Audio Input Amplitude - Amplitude of an audio input may be dynamically controlled within a predefined range of an analog-to-digital converter (ADC) threshold voltage. In one embodiment, an analog audio signal having a first voltage amplitude may be received by an amplifier. The analog audio signal may be amplified based on a gain control signal and converted to digital audio data by the ADC. The difference of the first voltage amplitude and the threshold voltage of the ADC may be determined and a gain control signal can be adjusted for the amplifier based, at least in part, on the difference in the first voltage amplitude and the threshold voltage of the ADC. The received analog audio signal characterized by a second voltage amplitude can be output. | 03-31-2011 |
Guoqi Yang, Shizuishan CN
| Patent application number | Description | Published |
|---|---|---|
| 20100226070 | TANTALUM POWDER, METHOD FOR PREPARING THE SAME, AND ELECTROLYTIC CAPACITOR ANODE MADE OF THE TANTALUM POWDER - The present invention relates to the tantalum powder and the process for preparing the same, and also relates to the electrolytic capacitor anode made of the tantalum powder. More particularly, the present invention relates to the tantalum powder having a BET surface area not more than 0.530 m | 09-09-2010 |
Guoqi Zhang, Shenzhen CN
| Patent application number | Description | Published |
|---|---|---|
| 20090128367 | Sensing ball - The present invention provides a sensing ball comprising a ball body on which several sensors are mounted, and in the ball body are mounted motors, an eccentric device driven by the motor and a controller for controlling rotation of the eccentric device, in which the sensors are connected to the controller. When a moving object approaches the sensing ball, the sensors generate sensing signals and input the sensing signals into the controller, and the controller controls rotation of the eccentric device and drives the ball body to roll back and forth in a specified direction or keeps it static based on the sensing signals. The sensing ball according to the present invention can realize a relatively strong interaction with a moving object, for example, when a child approaches the sensing ball, the sensing ball can move toward the direction far from the child, therefore stimulating his/her curiosity and attracting him/her to go ahead or creep so that the child may learn to walk and creep in this way. | 05-21-2009 |