Abstract: A dual-mode WLAN module includes two dual-band antennas (43a, 43b), an RF front-end circuit (4), a dual-mode radio frequency integrated circuit (RFIC) chip (3), a dual-mode Base-Band integrated circuit chip (2), and an interface (mini-PCI, PCI, USB etc.) connecting to a computer (1). The RF front-end circuit for dual-mode WLAN module comprises two transmitting circuits, two receiving circuits, switch units, and logic control circuit (40) for controlling the operation of transmitting/receiving selection and antenna diversity selection.

Abstract: A transceiver module (1) having a release mechanism includes a connector assembly (3), a driving device (43), and a pull tab (45). The connector assembly includes a tab (362) for being received in a hole (242) of a bendable portion (240) of a receptacle (2), which receptacle receives the transceiver module therein. The driving device includes, a release member (42) and a wedge member (46). Both the pull tab and the wedge member are mechanically linked to the release member. When the pull tab is pulled outwardly, the release member rotates with respect to the connector assembly, driving the wedge member to press against the bendable portion of the receptacle, thus disengaging the tab from the hole. The transceiver module is then easily withdrawn from the receptacle. This arrangement allows the transceiver modules to be closely stacked together while still being readily accessible. This advantage decreases a stacking height of multiple transceiver modules.

Abstract: A small form factor pluggable transceiver module (100) comprises an RJ connector (1) with a robust interface, a printed circuit board assembly (2), a cage (4), a frame (5) and a latch mechanism (6). The RJ connector further includes a shielding shell (11), a housing (12) received in the shielding shell, an RJ contact module (13) received in the housing, and an engaging clamp (3). The RJ connector attaches to the printed circuit board assembly. The engaging clamp provides a stronger, more reliable mechanical connection between the printed circuit board assembly and the RJ connector.

Abstract: A small form factor pluggable transceiver module (100) comprises an RJ connector (1), a printed circuit board assembly (2), an engaging clamp (3), a cage (4), a frame (5) and a latching mechanism (6). The RJ connector attaches to the printed circuit board assembly. The engaging clamp engages both with the RJ connector and the printed circuit board assembly to strengthen the connection between the RJ connector and the printed circuit board assembly.

Abstract: A dual-mode Wireless Local Area Network (WLAN) module installed in an electronic device (600) for wireless communication with other electronic devices includes an RF front-end unit (30), two dual-band antennas (40) coupled to the RF front-end unit, a dual-band radio frequency integrated circuit (RFIC) (20) coupled to the RF front-end unit, a dual-band base-band integrated circuit (BBIC) (10) coupled to the RFIC, and an interface unit coupled to both the BBIC and a computer (600). The RF front-end consists of transmitting and receiving paths. The RF front-end unit has antenna diversity control switching circuits (31, 33) for selecting an appropriate antenna and switching circuits (32, 34, 35, 36) for controlling ON/OFF states of transmitting/receiving paths of the RF front-end unit.

Abstract: Accessibility correction factors may be used to modify values predicted by models of electronic component substrate reactivity. Most of the correction factors described herein pertain to either steric or orientation effects on substrate accessibility. The correction factors may be derived from one or more “descriptors” of the substrate structure. Each group of descriptors and associated correction factor pertain to a particular site on the substrate. Examples of such descriptors include site polarity, protrusion, partial surface area, partial charge, etc. Often the correction factor is a function of multiple descriptors. The function may be an expression comprising multiple terms, each representing the weighted contribution of a particular descriptor. In other embodiments, the correction factor is simply a descriptor or a descriptor multiplied by a coefficient or other function.

Abstract: Methods are disclosed for developing models used to rapidly predict metabolic stability and regioselectivity of drug molecules. Training sets, based on a sample of molecules with known reaction rates and/or activation energies, are used along with structural descriptors of the molecules in order to develop mathematical models of metabolism based on regression analysis of the activation energies and descriptors. The resulting models are then used to predict the metabolism of other molecules. The invention is particularly useful in developing simple models of cytochrome p450 enzyme metabolism.