Abstract: A reversible watch insertion connector includes a connector body for connecting a watchband with a dial, where the connector body is slidably inserted into an insertion groove defined in the dial and the connector body is snap-fitted with the dial by a position securing slot defined in the insertion groove. Two movable buttons operative to move up and down are symmetrically arranged on an upper side and a lower side of the connector body respectively. And between the two movable buttons is arranged an elastic expansion member that makes the movable buttons protrude out of the connector body. The two movable buttons are inserted into the insertion groove along with the connector body, and one of the movable buttons is locked into the position securing slot under the action of the elastic expansion member, so as to realize the connection and fixation of the connector body with the dial.

Abstract: A safety footboard for a rail transit station comprises a fixed frame base, a sliding frame, and a footboard member, the footboard member being fixed in the front of the sliding frame. The sliding frame is arranged within the fixed frame base, being in sliding connection with the fixed frame base, and horizontally extending from and retracting to the fixed frame base with the guidance of guide rails and guiding means. A driving motor is fixed on the fixed frame base, and racks are fixed on the sliding frame, the racks being driven by the driving motor, pushing or pulling the sliding frame to extend from or retract to the fixed frame base.

Abstract: Disclosed is a safety footboard for a rail transit platform. The safety footboard for a rail transit station comprises a fixed frame base (401), a sliding frame (402), and a footboard member (403), the footboard member (403) being fixed in the front of the sliding frame. The sliding frame (402) is arranged within the fixed frame base (401), being in sliding connection with the fixed frame base, and horizontally extending from and retracting to the fixed frame base (401) with the guidance of guide rails and guiding means. A driving motor (404) is fixed on the fixed frame base (401), and racks (405) are fixed on the sliding frame (402), the racks (405) being driven by the driving motor, pushing or pulling the sliding frame (402) to extend from or retract to the fixed frame base (401). The safety footboard can effectively avoid potential safety hazards brought by a gap between a platform and a train door, and does not form obstruction to a moving train.

Abstract: Improved approaches are disclosed to update existing hearing devices by downloading software resources over a network from a remote server to a local client. The software resources are then stored in the existing hearing devices, thereby upgrading the functionality or operation of the existing hearing devices. Accordingly, existing hearing devices are able to be upgraded at convenient locations in a largely automated fashion. The invention is particularly useful for hearing aids or other sound systems for the hearing impaired.

Abstract: Improved approaches are disclosed to update existing hearing devices by downloading software resources over a network from a remote server to a local client. The software resources are then stored in the existing hearing devices, thereby upgrading the functionality or operation of the existing hearing devices. Accordingly, existing hearing devices are able to be upgraded at convenient locations in a largely automated fashion. The invention is particularly useful for hearing aids or other sound systems for the hearing impaired.

Abstract: A pressure regulating ear plug for regulating the rate of change of pressure inside an ear to minimize the pressure differential between the middle ear and a volume of the external ear cavity adjacent the ear drum is made of an ear plug adapted to fit tightly within the external ear cavity with no or minimal air leakage, and disposed within the ear plug is a pressure regulator with a slow leak rate. The pressure regulator is preferably made of a porous ceramic material.

Abstract: A pressure regulating ear plug for regulating the rate of change of pressure inside an ear to minimize the pressure differential between the middle ear and a volume of the external ear cavity adjacent the ear drum is made of an ear plug adapted to fit tightly within the external ear cavity with no or minimal air leakage, and disposed within the ear plug is a pressure regulator with a slow leak rate. The pressure regulator is preferably made of a porous ceramic material.

Abstract: A low-cost, four-channel cochlear stimulation system utilizes a completely passive, implantable receiver/electrode array that is inductively coupled to an external wearable processor. The receiver/electrode array is formed in a silicone rubber carrier adapted to be implanted in a deaf patient. At one end of the receiver/electrode array, positioned subcutaneously near the surface of skin above the ear, four receiving coils are arranged in an appropriate pattern. Such receiving coils are held within an hermetically-sealed titanium case. At the other end of the receiver/electrode array, which may be pre-formed in a spiral to match the basal turn of the cochlea, and which is inserted in the cochlea, four ball electrodes are spaced apart along an inner radius of the spiral. Each electrode is electrically connected to a respective receiving coil. Each receiving coil is also electrically connected to a reference electrode typically located near the receiver-coil end of the array.

Abstract: A pressure regulating earplug for regulating the rate of change of pressure inside an ear to minimize the pressure differential between the middle ear and a volume of the external ear cavity adjacent the ear drum is made of an ear plug adapted to fit tightly within the external ear cavity with no or minimal air leakage, and disposed within the earplug is a pressure regulator with a slow leak rate. Examples of the material which causes the pressure regulation include porous metal and porous ceramic material.