Acer Inc.

Ruey-Ching Shyu

Jia-Ren Chang

Po-Jen Tu

Kai-Meng Tzeng

Chih-Chiang Chen

Chao-Kuang Yang

Feng-Ming Liu

Tzu-Lung Chuang

Yu-Chun Huang

Chueh-Pin Ko

Yan-Lin Kuo

Hsueh-Chih Peng

Chien-Chung Chen

Tai Ju

Hao-Sheng Lo

Kuan-Chi Juan

Chi-Nan Lu

Neng-Wen Yeh

Po-Yu Li

Hsu-Hsiang Tseng

Yi-Chang Lai

Tsan-Sheng Chen

Lai-Shi Huang

Ya-Chi Hsu

A speaker module includes a casing, a speaker unit and a first vibration absorber. The speaker unit has a sound cavity. The speaker unit is disposed on a first wall of the casing. The speaker unit includes a diaphragm, a coil and a magnet, and the coil is configured to drive the diaphragm to vibrate relative to the magnet. The first vibration absorber is disposed in the sound cavity, and the first vibration absorber has a first natural frequency. When the ratio of the frequency of the diaphragm to the first natural frequency is greater than 0.781 and less than 1.28, the first vibration absorber is configured to absorb the vibration generated by the diaphragm to the casing.

Speaker module

A computer system and an output adjusting method used for an audio output apparatus are provided. In the method, detecting the output power of the audio output apparatus while outputting the audio signal, counting the accumulated time of the audio output apparatus while the output power is greater than the reference power, determining whether the accumulated time meets a corresponding adjusting condition, and adjusting the current maximum output power into the target power gradually within the time range according to the determined result that the accumulated time meets the corresponding adjusting condition. The adjusting condition includes that the accumulated time is greater than or equal to the tolerated hearing time of the corresponding reference power. The target power is less than or equal to the reference power which meets the adjusting condition. The maximum output power is the upper limit of the output power of the audio output apparatus.

Computer system and output adjusting method used for audio output apparatus

An electronic system includes a system air outlet, a heat sink, a fan and an acoustic filter. The acoustic filter is disposed between the system air vent and the heat sink and includes a front duct, a back duct and a single expansion chamber. A sound-receiving opening of the front duct is in airtight connection with the heat sink, and the sound-emitting opening of the back duct is in airtight connection with the system air vent. The single expansion chamber is disposed between the front duct and the back duct, and is located between the sound-emitting opening of the front duct and the sound-receiving opening of the back duct. The cross-sectional area of the single expansion chamber is larger than the cross-sectional area of an air outlet of the fan for generating reflective acoustic waves having a cut-off frequency so as to cancel noise generated by the fan.

Electronic system with heat dissipation and noise reduction function and related acoustic filter

A speaker module includes a casing and a speaker unit. The casing has a sound outlet. The speaker unit is arranged in the casing, the speaker unit and the sound outlet are arranged along a transverse axis, and the speaker unit includes a bearing base, a first speaker assembly, and a second speaker assembly. The first and second speaker assemblies are disposed on the bearing base. The first speaker assembly and the second speaker assembly are symmetrical relative to the bearing base. A first sound cavity is formed between the casing and the first speaker assembly, a second sound cavity is formed between the casing and the second speaker assembly, the first sound cavity and the second sound cavity are communicated with the sound outlet, and the first sound cavity and the second sound cavity have the same size and are symmetrical relative to the bearing base.

Electronic device and speaker module

A control method of microphone and an electronic apparatus are provided. In the control method, a switching operation is received. In response to receiving the switching operation, a sound-receiving state of a target program is detected. The sound-receiving state of the microphone is switched through an audio effect processing corresponding to the target program according to the detection result of the sound-receiving state, to switch the sound-receiving state of the target program from one of an activated state and a disabled state to the other. The switching operation is used for switching the sound-receiving state of the microphone. The sound-receiving state represents whether to receive sound through the microphone. The sound-receiving state includes the activated state and the disabled state. The target program is a currently running application. The audio effect processing is implemented by an audio engine between an application layer and a driver layer.

Control method of microphone and electronic apparatus

An electronic system includes an air vent, a heat sink, a fan, and an acoustic filter. The acoustic filter is disposed between the air vent and the heat sink and includes a sound-receiving opening, a sound-emitting opening, an expansion chamber, a neck channel, and a resonant chamber. The neck channel includes a first opening and a second opening whose surface is perpendicular to the surface of the sound-receiving opening. The first opening is in communication with the expansion chamber. The resonant chamber is connected to the second opening. Fan noise that enters the resonant chamber via the neck tube is dampened by reflective acoustic waves generated by the resonant chamber.

An electronic system includes a fan module, a reference microphone, a micro speaker module, and an active noise cancellation controller. The micro speaker module provides a noise-cancellation signal according to a micro speaker control signal for canceling the noises generated during the operation of the electronic system. The reference microphone outputs a wide-band noise signal associated with the operation of the fan module. The active noise cancellation controller outputs a virtual error signal according to a first transfer function between the reference microphone and a physical microphone when the fan module operates with a predetermined fan speed, a second transfer function between the micro speaker module and the physical microphone when the fan module is not in operation, and the wide-band noise signal. The active noise cancellation controller provides the micro speaker control signal according to a synchronization signal, the wide-band noise signal and the virtual error signal.

Electronic system having heat dissipation and feed-forward active noise control function and related method

An electronic system includes a fan module, an embedded controller, a reference microphone, an error microphone, an active noise cancellation controller, and a micro speaker module. The reference microphone is configured to output a wide-band noise signal associated with the operation of the fan module. The error microphone is configured to output an error signal by detecting the noise level during the operation of the electronic system. According to the wide-band noise signal, the error signal and the fan information provided by the embedded controller, the active noise cancellation controller calculates the narrow-band noises and the wide-band noises generated by the fan module, and drives the micro speaker module accordingly for providing a noise cancellation signal. The error signal may be reduced to zero by adaptively adjusting the noise cancellation signal for canceling the noises generated during the operation of the electronic system.

Electronic system with heat dissipation and feed-forward active noise control function and related method

An electronic system includes a fan module, an embedded controller, a reference microphone, an error microphone, an active noise cancellation controller, and a micro speaker module. The reference microphone outputs a wide-band noise signal associated with the operation of the fan module. The error microphone outputs an error signal by detecting the noise level of the electronic system. According to the wide-band noise signal, the error signal and the fan information provided by the embedded controller, the active noise cancellation controller provides a speaker control signal by calculating narrow-band and wide-band noises of the fan module, and drives the micro speaker module to provide a noise cancellation signal which is adjusted according to the wind pressure under the current fan speed of the fan module. The error signal may be reduced to zero by adaptively adjusting the noise cancellation signal for canceling the noises in the electronic system.

Electronic system having heat dissipation and feed-forward active noise control function with wind pressure compensation and related method

An electronic system includes a fan module, an embedded controller, an error microphone, an active noise cancellation controller, and a micro speaker module. The error microphone is configured to output an error signal by detecting the noise level during the operation of the electronic system. According to the error signal and the fan information provided by the embedded controller, the active noise cancellation controller calculates the narrow-band noises associated with the actual single-blade fundamental frequency noise and the actual BPF fundamental frequency noise generated by the fan module, and drives the micro speaker module accordingly for providing a noise cancellation signal. The error signal may be reduced to zero by adaptively adjusting the noise cancellation signal for canceling the noises generated during the operation of the electronic system.

Virtual reality (VR) systems and related methods are provided. A representative VR system includes: content detection circuitry configured to determine a type of VR content from among inside-out VR content and outside-in VR content; and processor circuitry configured to execute instructions to display the VR content in accordance with the type of VR content determined, wherein responsive to the content detection circuitry determining that the type of VR content is inside-out VR content, the processor circuitry executes instructions to display the inside-out VR content and, responsive to the content detection circuitry determining that the type of VR content is outside-in VR content, the processor circuitry executes instructions to display the outside-in VR content.

Content-aware virtual reality systems and related methods

An edge backlight module, a display apparatus and a backlight controlling method thereof are provided. Each light guide plate (LGP) is divided into longitudinal region(s) in the same direction. The LGPs are arranged in a stacked manner. Each two adjacent LGPs are arranged as upper LGP being completely overlapped with the longitudinal region(s) of lower LGP. The longitudinal region overlapped with adjacent upper LGP is defined as a reflecting region. The longitudinal region not overlapped with adjacent upper LGP is defined as an emitting region. Each LGP has one emitting region. Each reflecting film is sandwiched between two adjacent LGPs. Light from a light emitting device is emitted from the emitting region. Combing with lighting control at lateral region(s) separately, an array region is formed. The light emitting device further includes a high saturation light emitter to render an effect with a high dynamic range and high saturation.

Edge backlight module with stacked light guide plates, display apparatus and backlight control method thereof

An electronic system is provided, which includes a first device and a second device. The first device includes a light source unit, a light detection unit and a control unit. The light source unit is utilized for emitting light along a light path. The light detection unit is utilized for detecting reflected light and measuring intensity of the reflected light. The control unit is utilized for generating a control signal according to the intensity of the reflected light. The second device includes a switch body and a reflection portion. The reflection portion is disposed on the switch body. When the reflection portion is located on the light path, the reflection portion reflects at least a portion of the light to form at least a portion of the reflected light.

Growing community of inventors

Taipei, Taiwan

Ruey-Ching Shyu