Abstract: The present invention discloses a respiratory mask to connect a user and a breathing tube for receiving a first gas and releasing a second gas, so as to provide an user's respiratory system to exchange gas. It comprises a main part, an air chamber exchange part, an insert and a clamping part. The main part provides a first, second, and third openings that are communicated each other. The first opening connects to the breathing tube to receive the first gas from the breathing tube. The air chamber exchange part provides an exhaust assembly to relieve pressure according to an internal air pressure of the air chamber exchange part. The insert connects to the user's nose so as to direct the first gas to the user or direct the second gas from the user to the air chamber exchange part. The clamping part connects to the user's mouth.

Abstract: Various techniques pertaining to a special dual clear-to-send (CTS) mode for improvement in collision avoidance in wireless communications are described. A first station (STA) transmits a request-to-send (RTS) and, in response, receives a first CTS from a second STA. The first STA waits to receive a second CTS from the second STA before transmitting data to the second STA responsive to the first CTS being of a first type and the second CTS being of a second type different from the first type. The first STA then transmits the data to the second STA upon passage of a waiting period.

Abstract: The present invention discloses a respiratory mask to connect a user and a breathing tube for receiving a first gas and releasing a second gas, so as to provide an user's respiratory system to exchange gas. It comprises a main part, an air chamber exchange part, an insert and a clamping part. The main part provides a first, second, and third openings that are communicated each other. The first opening connects to the breathing tube to receive the first gas from the breathing tube. The air chamber exchange part provides an exhaust assembly to relieve pressure according to an internal air pressure of the air chamber exchange part. The insert connects to the user's nose so as to direct the first gas to the user or direct the second gas from the user to the air chamber exchange part. The clamping part connects to the user's mouth.

Abstract: A time-division mechanism that a source station uses a proprietary frame for notifying switching from a normal bandwidth operation to a narrow bandwidth operation to at least one destination station in a wireless communication system, and uses a protection frame to reserve the service period for the narrow bandwidth operation without the interference from the normal bandwidth operation, wherein the service period of the narrow bandwidth operation is indicated in the protection frame.

Abstract: The present invention provides a method of configuring transmission data streams and a wireless communication system. A first wireless device of the wireless communication system determines a number of data streams for a second wireless device, under a condition that the first wireless device operates in a noncontiguous operation mode. Radio frequency (RF) units of the wireless devices are fully exploited, and the data rate between the first wireless device and the second wireless device is enhanced.

Abstract: A communicating device includes: a first packet detector and a second packet detector, wherein the first detector is arranged to detect a first preamble included in a first response packet over a first sub-channel; and the second packet detector is arranged to detect a second preamble included in a second response packet over a second sub-channel. The second sub-channel is different from the first sub-channel, and the first packet detector and the second packet detector co-exist in the communicating device.

Abstract: A packet receiving method is provided. The packet receiving method includes the following steps: during receipt of the first packet by a receiver, detecting if any packet arrives at the receiver after a first packet; and when it is detected that a second packet arrives at the receiver during the receipt of the first packet, determining whether to decode the first packet or the second packet.

Abstract: A time-division mechanism that a source station uses a proprietary frame for notifying switching from a normal bandwidth operation to a narrow bandwidth operation to at least one destination station in a wireless communication system, and uses a protection frame to reserve the service period for the narrow bandwidth operation without the interference from the normal bandwidth operation, wherein the service period of the narrow bandwidth operation is indicated in the protection frame.

Abstract: A channel scan method includes: configuring a receiving circuit to perform a single signal reception of a first bandwidth to generate a signal reception result; and performing channel scan upon the signal reception result to detect a channel status of each channel having a second bandwidth smaller than the first bandwidth. In addition, a channel scan device has a receiving circuit, a control circuit, and a scan circuit. The control circuit controls the receiving circuit to perform a single signal reception of a first bandwidth to generate a signal reception result. The scan circuit performs channel scan upon the signal reception result to detect a channel status of each channel having a second bandwidth smaller than the first bandwidth.

Abstract: The present invention provides a method of configuring transmission data streams and a wireless communication system. A first wireless device of the wireless communication system determines a number of data streams for a second wireless device, under a condition that the first wireless device operates in a noncontiguous operation mode. Radio frequency (RF) units of the wireless devices are fully exploited, and the data rate between the first wireless device and the second wireless device is enhanced.

Abstract: A spout control valve for water drinking machines aims to be assembled and installed easily and provide smooth water supply. The control valve is located in a spout of a water drinking machine. The control valve has an integrated valve seat made of non-lead material. An action seat and a drawing seat are provided to move together. The drawing seat has a stopper plug to butt an outlet of a first water passage of the valve seat to control opening and closing of water supply.