Abstract: A method and device for measuring spinal column curvature. The method comprises following steps: S1 acquiring a spinal column image by using a three-dimensional ultrasound imaging unit; S2 enhancing, dissecting, and thinning the spinal column image; S3 obtaining, on basis of the enhanced, dissected, and thinned spinal column image, a curve point representing a position of a vertebra; S4 generating a final spinal column curve by using the curve point; S5. and calculating a spinal column curvature angle by using an inflection point of the spinal column curve. The device comprises the three-dimensional ultrasound imaging unit; a processor; and an operating sensor. The method and device use three-dimensional ultrasound imaging to simplify spinal column curvature angle measurement, and use a manual process, a computer-assisted process, or a combination of two processes to collect the curve point, simplify an operation method, and improve precision of a spinal column curvature angle measurement.

Abstract: Methods and apparatuses for mitigating coexistence interference in a wireless device between a WLAN interface and a WPAN interface during a WLAN authentication process. The wireless device associates with a WLAN access point (AP), and after receiving a WLAN association response from the WLAN AP, the wireless device alternates between WLAN time periods, during which WLAN transmission is enabled and WPAN transmission is disabled, and WPAN time periods, during which WPAN transmission is enabled and WLAN transmission is disabled, during the WLAN authentication process. Durations of the WPAN time periods are based at least in part on a WPAN profile, e.g., a Bluetooth profile, in use by the wireless device. Durations of the WLAN time periods are based at least in part on receipt of WLAN authentication messages from the WLAN AP during the authentication process or expiration of WLAN authentication process timers.

Abstract: Methods and apparatuses for mitigating coexistence interference in a wireless device between a WLAN interface and a WPAN interface during a WLAN authentication process. The wireless device associates with a WLAN access point (AP), and after receiving a WLAN association response from the WLAN AP, the wireless device alternates between WLAN time periods, during which WLAN transmission is enabled and WPAN transmission is disabled, and WPAN time periods, during which WPAN transmission is enabled and WLAN transmission is disabled, during the WLAN authentication process. Durations of the WPAN time periods are based at least in part on a WPAN profile, e.g., a Bluetooth profile, in use by the wireless device. Durations of the WLAN time periods are based at least in part on receipt of WLAN authentication messages from the WLAN AP during the authentication process or expiration of WLAN authentication process timers.

Abstract: A system and method for wireless local area network airtime fairness. Distribution of airtime amongst a plurality of associated mobile stations can be based on a determination of a total channel availability. The total channel available is based on a total channel utilization determined through detected energy on the channel and a mobile station utilization determined through monitored traffic between the wireless access point and the associated mobile stations.

Abstract: A system and method for wireless local area network airtime fairness. Distribution of airtime amongst a plurality of associated mobile stations can be based on a determination of a total channel availability. The total channel available is based on a total channel utilization determined through detected energy on the channel and a mobile station utilization determined through monitored traffic between the wireless access point and the associated mobile stations.