Abstract: The present invention provides an audio processing apparatus for automatically controlling gain. The audio processing apparatus includes an audio signal source and a sound reproduction device. The sound reproduction device attaches to the audio signal source, which includes a storage unit for storing a default gain value and a gain index table. The gain index table lists genre types with a genre gain value of each of the genre types. After receiving a play command signal, the audio signal source fetches an audio file to be played, reads a genre type of the audio file from a tag thereof, and processing the audio file to generate audio signals. The audio signal source further reads a genre gain value of the genre type from the gain index table, amplifies the audio signals by the genre gain value, and sends the amplified audio signals to the sound reproduction device to reproduce corresponding sounds.

Abstract: The present invention relates to a method for hearing protection in an ambient environment of a sound reproduction device, includes steps of: receiving digital audio signals from an audio signal source via a connector; sampling the digital audio signals to obtain a plurality of sampled amplitude values; computing an actual audio energy of the digital audio signals within a predetermined time period setting the sampled amplitude values sampled within the predetermined time period as parameters; collecting ambient noises to compute a noise level; obtaining a reference audio energy corresponding to the noise level; comparing the actual audio energy with the reference audio energy; generating a hearing protect signal if the actual audio energy reaches the reference audio energy; and reducing a current gain value or emitting reminding information when receiving the hearing protect signal, thus, protecting users' hearing. The present invention also provides a corresponding sound reproduction device.

Abstract: The present invention relates to a method for hearing protection in an ambient environment of a sound reproduction device, includes steps of: receiving analog audio signals from an audio signal source via a connector; converting the analog audio signals to digital audio signals; sampling the digital audio signals to obtain a plurality of sampled amplitude values; computing an actual audio energy of the digital audio signals within a predetermined time period setting the sampled amplitude values sampled within the predetermined time period as parameters; collecting ambient noises to compute a noise level; obtaining an audio reference energy according to the noise level; comparing the actual audio energy with the audio reference energy; generating a hearing protect signal if the actual audio energy reaches the audio reference energy; and changing a current gain value or emitting reminding information, thus, protecting listeners' hearing.

Abstract: A touch sensing apparatus is provided. A preferred embodiment of a touch sensing apparatus includes a sensor (13), an MCU (15), and an integration circuit (14). The sensor is for receiving electricity signals from an object that touches the sensor. The MCU (Microcontrol Unit) has a signal output port A and a signal input port B. The signal input port is connected to the sensor. The integration circuit interposes between the signal output port and the signal input port of the MCU. The signal output port outputs AC signals to the signal input port through the integration circuit. The integration circuit prolongs active transition times of the AC signals, and the MCU identifies a touch on the sensor when the active transition times of the AC signals fall in a predetermined range and accordingly implements a predetermined function.

Abstract: A portable electronic apparatus with a power saving function is provided. A preferred embodiment of the apparatus includes a first data storage (11), a temp data storage (12), a power unit (14), a power control unit (13), and a CPU (15). The CPU is for sending a control instruction to the power control unit to control the power control unit to supply power to the first data storage when receiving a read or a write command, implementing a read process of reading data from the first data storage to the second data storage, or implementing a write process of writing data from the second data storage to the first data storage in accordance with the received read or write command, and sending a control instruction to control the power control unit to cut off the power supply of the first data storage after the read or write process is implemented.

Abstract: An acoustic inspection apparatus and its transport device are disclosed. The acoustic inspection apparatus includes an anechoic chamber and a transport device. The anechoic chamber defines an entrance. The transport device includes a support frame, guiding rails, sliding blocks, a motor, and a multiple holder. The guiding rails are mounted on the support frame. The sliding blocks are fitted on the guiding rails. The motor drives the sliding blocks moving along the lengthwise direction of the guiding rails. The multiple holder is connected with the sliding blocks and at least includes an acoustical anechoic chamber cover and a holding platform configured for supporting a sound device that to be inspected. The acoustic inspection apparatus can be used in product line to inspect sound devices.

Abstract: A hand-held device is provided. The hand-held device includes a rotary wheel, a switch, a character region, and a controller. The rotary wheel has a plurality of positioning inputs. The character region includes a plurality of icons corresponding to the positioning inputs. Each icon includes a character. The controller is responsive to operation on the rotary wheel and the switch, and inputs a corresponding character. The above-mentioned rotary wheel can replace keyboard in the hand-held device.

Abstract: The present invention relates to a hearing protection method of a sound output device, includes steps of: obtaining analog audio signals from an audio signal source via a plug of the sound output device; converting the analog audio signals to generate digital audio signals; sampling the digital audio signals to obtain a plurality of amplitude values of the sampled digital audio signals; calculating an audio energy in every predetermined time period according to the amplitude values sampled in the predetermined time period; determining whether the audio energy reaches a predetermined value; generating a hearing protect signal if the audio energy reaches the predetermined value; and in response to the hearing protect signal, automatically reducing a current gain value or outputting prompt information, thus, preventing hearing impairment of users. The present invention also provides a corresponding sound output device for hearing protection.

Abstract: The present invention relates to a hearing protection method, includes steps of: obtaining digital audio signals from an audio signal source; sampling the digital audio signals and obtaining a plurality of amplitude values; calculating an audio energy within a predetermined time period according to the amplitude values sampled in the predetermined time period; determining whether the audio energy reaches a predetermined value; and generating a hearing protect signal when the audio energy reaches the predetermined value, thereby protecting users' hearing. The present invention also provides a corresponding sound output device for hearing protection.

Abstract: A hand-held device is provided. The hand-held device includes a rotary wheel, a first switch, a second switch, an encoder, a memory, and a controller. The rotary wheel has a plurality of positioning inputs. The encoder is responsive to operations on the rotary wheel and outputs positioning codes. The memory stores a plurality of input modes, wherein each input mode includes characters corresponding to positioning codes. The controller obtains an input mode from the memory, and shifts a current input mode to the input mode obtained in responsive to an input from the first switch. The controller inputs a character of the current input mode according to a positioning code that the encoder outputs in response to an input from the second switch. The above-mentioned rotary wheel can replace keyboard in the hand-held device.

Abstract: A sound signal generator testing apparatus is provided. The apparatus includes a hermetic seal (2), a sound signal input unit (4), and at least a noise suppression unit (5). The sound signal input unit is for receiving sound signals transmitted from a sound signal generator (1) under testing. Each noise suppression unit includes a sound signal input unit, a low pass filter, an inverter, and an output. The sound signal input unit is for receiving sound signals. The low pass filter is for filtering the sound signals by passing the low frequencies of the sound signals that are below a predetermined value. The inverter is for inverting phases of the sound signals transmitted from the low pass filter and producing inverted sound signals. The output unit is placed behind the sound signal input unit for outputting the inverted sound signals.

Abstract: A touch sensing apparatus is provided. The apparatus includes a flip-flop (15), a sensor (13), an AC signal (14), and a detector (16). The AC signal supplies AC signals to the flip-flop. The flip-flop outputs a first output signal at the output of flip-flop when the sensor is not touched. The sensor receives electricity signals from the object, and causes a delay of the AC signal inputted to the first input of the flip-flop, the delay of the AC signal to be inputted to the first input of the flip-flop further causes the flip-flop to output a second output signal at the output of the flip-flop. The detector detects a change from the first output signal to the second output signal at the output of the flip-flop and accordingly identifies a touch on the sensor.

Abstract: A digital watermarking system and method is provided. The digital watermarking system mainly includes a storing unit, a text obtaining module, a pixel determining module, an encrypting module, and a storing module. The storing unit is for storing text information, the text information including one or more dot matrix files. The text obtaining module is for obtaining one dot matrix file to be watermarked from the storing unit. The dot matrix file includes plural dot matrixes, each of the dot matrixes includes plural pixels, each of the pixels has a brightness value. The pixel determining module is for earmarking the pixel to be adjusted, an initial brightness value of the earmarked pixel being in a predetermined range. The encrypting module is for adjusting the brightness value of the earmarked pixel. The storing module is for storing watermarked text information in the storing unit. Related methods are provided.

Abstract: A method is provided for calculating an amount of guarantee deposit of a supplier, comprising: providing a server, in which stores a standard guarantee deposit rate table, a defect rate table, a standard defect rate table, a materials table recording a quantity and a unit price of each type of materials; obtaining a standard guarantee deposit rate from the standard rate table; determining a coefficient of the guarantee deposit by obtaining a defect rate and the standard defect rate of the materials respectively from the defect rate table and the standard defect rate table; determining an actual guarantee deposit rate of the materials according to the standard guarantee deposit rate and the coefficient; and calculating an amount of guarantee deposit according to the actual guarantee deposit rate and a quantity and a unit price of the materials obtained from the materials table.

Abstract: A low power multimedia playing system is provided. The system includes a portable computer and a portable media player. The portable computer includes an activation switch, an interface, a storage unit, a microcontroller, and a bus controller. The activation switch is for a function of playing audio files. The storage unit is for storing the audio files. The interface configured is for communicating with the portable media player. The microcontroller is operated when the portable computer is not powered, and is programmed for controlling the media player connected thereto to play the audio files stored in storage unit. The bus controller configured is for controlling a battery to supply power to the storage unit and the microcontroller, in response to an operation on the activation switch.

Abstract: A portable computing device for controlling a computer is provided. The portable computing device includes an input device, and an optical sensing module. The optic sensing module is for capturing images which map a movement of the portable computing device. When the portable computing device is connected to the computer and is in a mouse mode, the optical sensing module is operative to serve as an input device for the computer to control a movement of a cursor thereon, and the input device is also operative to serve as an input device for the computer.

Abstract: A hand-held device is provided. The hand-held device includes a rotary wheel, a switch, a character region, and a controller. The rotary wheel has a plurality of positioning inputs. The character region includes a plurality of icon areas corresponding to the positioning inputs. Each icon area includes a plurality of characters. According to a positioning input the rotary wheel locates, the controller selects characters of the corresponding icon area. According to a count the switch is operated, the controller inputs a corresponding character of the characters selected. The above-mentioned rotary wheel can replace keyboard in the hand-held device.

Abstract: An auxiliary input device for menu control on a portable computing device is provided. The auxiliary input device includes a lighting unit, an optical lens, and an optical sensor. The lighting unit is for projecting light to a surface upon which the portable computing device is moved upon. The optical lens is for receiving reflected light from the surface and focusing the reflected light on the optical sensor. The optical sensor is for periodically capturing images of the reflected light and transmitting information of the images captured to the portable computing device. The images captured map a movement of the portable computing device. Accordingly, the portable computing device scrolls through a menu displayed thereon according to the images captured. A related method is also provided.

Abstract: An input device with a lock mechanism is provided. The input device has a storage unit, a pressure sensor, a microcontroller, and a locking unit. The storage unit is for storing information, typically private, sensitive files/documents. The pressure sensor is for generating pressure sensing signals if pressed. The microcontroller is for scanning the pressure sensing signals in real time, and generating and transmitting a lock signal to the locking unit. The locking unit is signaled to perform a lock operation on the storage unit in response to the lock signal, thereby preventing unauthorized access to the information of the storage unit. A related method is also provided.