Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode and a second mode respectively, and the connections are carried out by isochronous streaming channels. The first member device transmits captured voice data to the Bluetooth main control device, while the second member device does not. When an event is triggered, the first member device can notify the second member device through the Bluetooth host device, so that the first member device and the second member device can carry out subsequent voice input handover procedures.

Abstract: An auxiliary Bluetooth circuit for use in a multi-member Bluetooth device is disclosed including: a second Bluetooth communication circuit, a second packet parsing circuit, and a second control circuit. In a period during which the auxiliary Bluetooth circuit operates at a sniffing mode, the main Bluetooth circuit receives packets transmitted from the remote Bluetooth device, while the second control circuit utilizes the second Bluetooth communication circuit to sniff packets issued from the remote Bluetooth device. In a situation of that a throughput of packets sniffed by the auxiliary Bluetooth circuit is lower than a predetermined threshold, the auxiliary Bluetooth circuit switches from the sniffing mode to a relay mode. In a period during which the auxiliary Bluetooth circuit operates at the relay mode, the second control circuit utilizes the second Bluetooth communication circuit to receive packets forwarded from the main Bluetooth circuit.

Abstract: A main Bluetooth circuit and an auxiliary Bluetooth circuit of a multi-member Bluetooth device are disclosed. The multi-member Bluetooth device is utilized for communicating data with a source Bluetooth device, and the source Bluetooth device acts as a master in a first piconet. The main Bluetooth circuit acts as a slave in the first piconet, and acts as a master in a second piconet. The auxiliary Bluetooth circuit acts as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock synchronized with a first main clock generated by the source Bluetooth device, and samples a first audio data to be playback. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock synchronized with the second main clock, and samples a second audio data to be playback.

Abstract: An exhaust manifold comprises a plurality of exhaust intake conduits structured to be fluidly coupled to an engine and receive exhaust gas from a corresponding cylinder of the engine. At least one exhaust intake conduit provides a reduction in an exhaust intake conduit cross-sectional area from an inlet to an outlet. A plurality of bends are each defined by a respective one of the exhaust intake conduit outlets. An exhaust intake manifold is fluidly coupled to the exhaust intake manifold and defines an exhaust intake manifold flow axis. Each of the plurality of bends is shaped so as to define an angle of approach of exhaust gas flowing therethrough. A first angle of approach of the first bend relative to the exhaust intake manifold flow axis is smaller than a second angle of approach of an inner second bend.

Abstract: An alkaline cleaning composition is provided. The alkaline cleaning composition includes an alkaline compound, 5% to 40% by weight of propylene glycol monomethyl ether, 10% to 30% by weight of water, and a polar solvent. Wherein, the polar solvent includes acetals, glycol ethers, pyrrolidones, or a combination thereof, and the alkaline cleaning composition is free of benzenesulfonic acid.

Abstract: A multi-member Bluetooth device for communicating data with a remote Bluetooth device is disclosed including: a main Bluetooth circuit and an auxiliary Bluetooth circuit. In the period during which the auxiliary Bluetooth circuit operates at a sniffing mode, the auxiliary Bluetooth circuit sniffs packets transmitted from the remote Bluetooth device and the main Bluetooth circuit receives packets transmitted from the remote Bluetooth device. But the auxiliary Bluetooth circuit switches from the sniffing mode to a relay mode if the data type of packets transmitted from the remote Bluetooth device changes. In the period during which the auxiliary Bluetooth circuit operates at the relay mode, the main Bluetooth circuit receives packets transmitted from the remote Bluetooth device and forwards the received packets to the auxiliary Bluetooth circuit, and the auxiliary Bluetooth circuit does not sniff packets transmitted from the remote Bluetooth device.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device, a first Bluetooth member device, and a second Bluetooth member device. The audio broadcasting device broadcasts BLE audio packets and transmits a predetermined volume instruction to the first Bluetooth member device and the second Bluetooth member device before broadcasting the BLE audio packets. The first Bluetooth member device parses the BLE audio packets to acquire a predetermined audio data, controls a first audio playback circuit to playback the predetermined audio data, and configures an audio volume of the first audio playback circuit in advance according to the predetermined volume instruction. The second Bluetooth member device parses the BLE audio packets to acquire the predetermined audio data, controls a second audio playback circuit to playback the predetermined audio data, and configures an audio volume of the second audio playback circuit in advance according to the predetermined volume instruction.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device, a first Bluetooth member device, and a second Bluetooth member device. The audio broadcasting device broadcasts BLE audio packets. After the first Bluetooth member device issues a volume adjusting request, the audio broadcasting device transmits a volume adjusting instruction to the first Bluetooth member device and the second Bluetooth member device. The first Bluetooth member device acquires a predetermined audio data from the BLE audio packets, controls a first audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the first audio playback circuit according to the volume adjusting instruction. The second Bluetooth member device acquires the predetermined audio data from the BLE audio packets, controls a second audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the second audio playback circuit according to the volume adjusting instruction.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device arranged to operably broadcast BLE audio packets; a first Bluetooth member device arranged to operably parse the BLE audio packets to acquire a predetermined audio data and to operably control a first audio playback circuit to playback the predetermined audio data; and a second Bluetooth member device arranged to operably parse the BLE audio packets to acquire the predetermined audio data and to operably control a second audio playback circuit to playback the predetermined audio data. After receiving the BLE audio packets from the audio broadcasting device, the first Bluetooth member further adjusts an audio volume of the first audio playback circuit according to a volume adjusting instruction transmitted from another device other than the audio broadcasting device, and the second Bluetooth member further adjusts an audio volume of the second audio playback circuit according to the volume adjusting instruction.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device, a first Bluetooth member device, and a second Bluetooth member device. The audio broadcasting device broadcasts BLE audio packets and transmits a volume adjusting instruction to the first Bluetooth member device and the second Bluetooth member device after they receive the BLE audio packets. The first Bluetooth member device parses the BLE audio packets to acquire a predetermined audio data, controls a first audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the first audio playback circuit according to the volume adjusting instruction. The second Bluetooth member device parses the BLE audio packets to acquire the predetermined audio data, controls a second audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the second audio playback circuit according to the volume adjusting instruction.

Abstract: A measuring equipment, applied to carry a workpiece to be measured, includes a main base and a positioning device. The main base includes a measuring center axis. The positioning device includes at least two positioning elements. Each of the at least two positioning elements is disposed movably on the main base, and each of the at least two positioning elements is moved with respect to the measuring center axis. An identical distance is there from each of the at least two positioning elements to the measuring center axis. Each of the at least two positioning elements is used for the workpiece to contact and to be positioned to the measuring center axis.

Abstract: A driver status monitor test method is for testing if a driver status monitor generates an alarm operation in accordance with driver motion images. A photographing unit of the driver status monitor is configured to take photographs of the driver motion images. The driver status monitor test method includes a test motion selecting step and a driver motion image displaying step. The test motion selecting step includes selecting at least one test motion for testing the driver status monitor by a user interface. The driver motion image displaying step includes displaying the driver motion images by a display. The driver motion images are a plurality of predetermined image frames in accordance with the test motion. The driver motion images include at least one of a face image, a forelimb image and a torso image.

Abstract: An exhaust manifold comprises a plurality of exhaust intake conduits structured to be fluidly coupled to an engine and receive exhaust gas from a corresponding cylinder of the engine. At least one exhaust intake conduit provides a reduction in an exhaust intake conduit cross-sectional area from an inlet to an outlet. A plurality of bends are each defined by a respective one of the exhaust intake conduit outlets. An exhaust intake manifold is fluidly coupled to the exhaust intake manifold and defines an exhaust intake manifold flow axis. Each of the plurality of bends is shaped so as to define n angle of approach of exhaust gas flowing therethrough. A first angle of approach of the first bend relative to the exhaust intake manifold flow axis is smaller than a second angle of approach of an inner second bend.

Abstract: A driver status monitor test method is for testing if a driver status monitor generates an alarm operation in accordance with driver motion images. A photographing unit of the driver status monitor is configured to take photographs of the driver motion images. The driver status monitor test method includes a test motion selecting step and a driver motion image displaying step. The test motion selecting step includes selecting at least one test motion for testing the driver status monitor by a user interface. The driver motion image displaying step includes displaying the driver motion images by a display. The driver motion images are a plurality of predetermined image frames in accordance with the test motion. The driver motion images include at least one of a face image, a forelimb image and a torso image.

Abstract: A liquid cooling device includes a thermally conductive base, a cover, and a metallic partition. The thermally conductive base has a fluid chamber and a plurality of fins. The fins are located in the fluid chamber and protrudes from an inner surface of the thermally conductive base facing the fluid chamber. Every two of the fins located adjacent to each other define a channel therebetween. Distal ends of at least part of the fins located away from the inner surface together form a covering structure partially coving the channels. The metallic partition is located between and welded to the covering structure and the cover.

Abstract: Disclosed is a graphics processing device including a main SoC, a performance-enhancing SoC, and an external circuit that is set outside any of the two SoCs. The main SoC includes: a first graphics processing unit (GPU) dividing to-be-processed data into a first input part and a second input part, and processing the first output part to generate first output data; and a first transceiver circuit forwarding the second input part to the performance-enhancing SoC via the external circuit, and then receiving second output data via the external circuit and forwarding it. The performance-enhancing SoC includes: a second transceiver circuit receiving the second input part via the external circuit and outputting the second output data to the main SoC via the external circuit; and a second GPU receiving the second input part from the second transceiver circuit and processing this part to provide the second output data for the second transceiver.

Abstract: Disclosed is a data processing device including a main SoC, a performance-enhancing SoC, and an external circuit that is set outside any of the two SoCs. The main SoC includes: a first central processing unit (CPU) dividing to-be-processed data into a first input part and a second input part, and processing the first input part to generate first output data; and a first transceiver circuit forwarding the second input part to the performance-enhancing SoC via the external circuit, and then receiving second output data via the external circuit and forwarding it. The performance-enhancing SoC includes: a second transceiver circuit receiving the second input part via the external circuit, and transmitting the second output data to the main SoC via the external circuit; and a second CPU receiving the second input part from the second transceiver circuit and processing it to provide the second output data for the second transceiver circuit.

Abstract: A power-saving method for switching High Definition Multimedia Interface (HDMI) ports on a sink device is provided. The sink device has a first HDMI port initially being enabled for displaying and a second HDMI port being disabled for displaying. The power-saving method includes the steps of using the reference signals to locate the VSYNC active edge in each frame generated by a source device connected to the second HDMI port; turning on the power to the second HDMI port during a power-on region corresponding to the VSYNC active edge in each frame and turning off power otherwise; obtaining information related to a high bandwidth digital content protection (HDCP) in the power-on region; and displaying video data from the source device based on the HDCP information when enabling the second HDMI port connected to the source device.

Abstract: A code disk is adapted to an optical absolute rotary encoder. The code disk is divided into a plurality of columns, with the plurality of columns disposed in a circumferential direction around a center position and respectively extending in a plurality of radial directions. The code disk comprises a plurality of disk sectors sequentially disposed in the circumferential direction around the center position, wherein each of the disk sectors comprises a plurality of code pieces, each of the code pieces comprises an encoded value, each of the encoded values comprises a plurality of bits adopting Manchester code, these bits are arranged in one of the radial directions, and the encoded values of two of the disk sectors are arranged as Gray code.

Abstract: The present invention provides an electronic device including a wireless communication module, a counter and a processing circuit. The wireless communication module is configured to receive a first packet and a second packet from another electronic device, wherein the first packet includes a first counter value, the second packet includes a second counter value, and the first counter value and the second counter value correspond to two adjacent edges of an original signal of another electronic device, respectively. The processing circuit is configured to obtain a third counter value from the counter when the first packet is received, and obtain a fourth counter value from the counter when the second packet is received; and the processing circuit further generates an output signal that is substantially the same as the original signal according to the first counter value, the second counter value, the third counter value and the fourth counter value.