Abstract:
A microphone package includes a housing; a control circuit chip accommodated in the housing; a micro-electromechanical chip accommodated in the housing; and a circuit board forming an accommodation space with the housing. The circuit board includes a substrate, a rigid conductive layer disposed on the substrate and a plurality of conductive pads on the substrate for connecting to the control circuit chip. The micro-electromechanical chip and the control circuit chip are mounted on the rigid conductive layer, and the rigid conductive layer is provided with a number of isolation holes for receiving the conductive pads.
Abstract:
A MEMS sensor is disclosed. The MEMS sensor includes a housing having an acoustic port, a base plate forming an accommodation cavity together with the housing, a MEMS chip accommodated in the accommodation cavity, and a control mechanism having a first working position and a second working position. At the first working position, the acoustic port communicates the accommodation cavity with an external space of the housing, while at the second working position, the control mechanism isolates the accommodation cavity from the external space of the housing.
Abstract:
A MEMS sensor is disclosed. The MEMS sensor includes a housing having an acoustic port, a base plate forming an accommodation cavity together with the housing, a MEMS chip accommodated in the accommodation cavity, and a control mechanism having a first working position and a second working position. At the first working position, the acoustic port communicates the accommodation cavity with an external space of the housing, while at the second working position, the control mechanism isolates the accommodation cavity from the external space of the housing.
Abstract:
A microphone is disclosed. The microphone includes a housing and a circuit board cooperatively forming an accommodation space to accommodate a MEMS chip. The housing forms a first sound channel and the circuit board forms a second sound channel. Further, the microphone includes a controller for controlling the switch of the first and second sound channels.
Abstract:
The invention provides methods of making and using compounds of the formula: or a pharmaceutically acceptable salt thereof; wherein n is an integer between 1 and 2 inclusively; m is an integer between 0 and 2 inclusively; X is selected from the group consisting of CH or N; R1 is selected from the group consisting of —CH2NH2, and R2 is selected from the group consisting of —H, —OH, —NH2 and acetyl; R3 is selected from the group consisting of —H, benzyloxycarbonyl and benzylsulfonyl; and R4 is selected from the group consisting of —OH, wherein p is an integer between 0 and 2 inclusively, Y is selected from the group consisting of —O—, —S—, —S(═O)—, —SO2—, methylene, —CH(OH)—, —CH(NH2)—, —CH(CH2—OH)—, —CH(CH2—NH2)— or —N(R6)—, R5 is selected from the group consisting of —H or a simple (C1-C3) alkyl and R6 is selected from the group consisting of —H, a simple (C1-C3) alkyl or a simple (C1-C3) acyl. These compounds are useful as anticoagulant agents as a result of their selective dual inhibition of thrombin and prothrombinase.
Abstract:
The present invention relates to phosphonated Rifamycins, and methods of making and using such compounds. These compounds are useful as antibiotics for prophylaxis and/or the treatment of bone and joint infections, especially for the prophylaxis and/or treatment of osteomyelitis.
Abstract:
The present invention relates to phosphonated fluoroquinolones, antibacterial analogs thereof, and methods of using such compounds. These compounds are useful as antibiotics for prevention and/or the treatment of bone and joint infections, especially for the prevention and/or treatment of osteomyelitis.
Abstract:
The invention relates to derivatives of glycopeptide and lipoglycopeptide antibiotics possessing an altered ionization state with respect to the parent glycopeptide or lipoglycopeptide antibiotic, and having the ability to be regenerated as the parent glycopeptide or lipoglycopeptide antibiotic under physiological conditions. These compounds are useful as antibiotics for the prevention and/or the treatment of bacterial infections.
Abstract:
The invention relates to derivatives of glycopeptide and lipoglycopeptide antibiotics possessing an altered ionization state with respect to the parent glycopeptide or lipoglycopeptide antibiotic, and having the ability to be regenerated as the parent glycopeptide or lipoglycopeptide antibiotic under physiological conditions. These compounds are useful as antibiotics for the prevention and/or the treatment of bacterial infections.
Abstract:
The present invention relates to phosphonated Rifamycins, and methods of making and using such compounds. These compounds are useful as antibiotics for prophylaxis and/or the treatment of bone and joint infections, especially for the prophylaxis and/or treatment of osteomyelitis.