Abstract: The present invention relates to a digital pulse generator being adapted to be integrated in electronic equipment, such as hearing instruments, mobile phones and/or audio equipment. In particular, the present invention relates to a digital pulse generator being capable of providing an output signal on two or more terminals. The digital pulse generator according to the present invention requires a minimum of electrical components, so as to provide a cheaper and easier assembling process, and to provide a digital pulse generator that is shock resistant.

Abstract: Herein disclosed are a switching apparatus and a vehicle-mounted electronic apparatus having the switching apparatus assembled therein.

Abstract: A transfer switch that includes output contacts, primary input contacts, secondary input contacts and a switch stack. The switch stack alternately connects the output contacts to the primary input contacts and the secondary input contacts via at least one conductive path. The transfer switch further includes at least one flux barrier that is at least partially positioned near the conductive path to minimize magnetic interaction with the conductive path as current travels through the switch stack.

Abstract: An electrical switch includes a casing having a central and two side chambers that are separated from the central chamber by respective partitions. A switching mechanism in each second chamber has fixed and moving contacts and an actuator. A rocker in the central chamber is used to cause the actuators to move the moving contacts into contact with and out of contact from the fixed contacts. There is also included engaging means engaging each actuator to the rocker for movement thereby, which has a circular part that extends across the first and second chambers rotatably snugly through a circular hole in the partition such that partitioning between the central and side chambers is substantially splash, jet or dust proof.

Abstract: A key top, a key top lighting device and an electronic apparatus with improved operability for use in the dark is provided wherein the key top can be illuminated at a low power consumption rate and without disturbing the people nearby. Specifically, a transparent fluorescent ink that emits fluorescent light upon being irradiated by black light having a wavelength within a range of 300 nm to 450 nm is printed on the key top, and a black light lamp irradiates the black light on this key top, so that the operability of the key top can be improved when used in the dark.

Abstract: In order to facilitate fixing an operating button to the front panel of an electric device, the operation button includes a rectangular frame having at least one engagement piece integrally connected to and extending downwards from its bottom side. The operation button can be fixedly held on the lower side by press-fitting the engagement piece into an associated engagement slot made in the bottom plate of the cabinet. The front panel has at least one tapped boss fixed to its rear side, thereby allowing the frame to be screwed on the upper side to the tapped boss. Alternatively, the front panel has at least one apertured engagement piece fixed to its rear side, whereas the frame has at least one yieldingly bendable curved hook integrally connected to its upper side. The curved hook has a nail formed at its free end. The upper side of the operation button is fixed to the front panel by press-fitting the nail of the curved hook in the aperture of the engagement piece of the front panel.

Abstract: A multi-directional switch contains a bearing 4, an operating shaft 3 supported rockably by the bearing 4, and a cam 15c for giving a required feeling of operation to a rocking operation of the operating shaft 3. In the cam 15c, a spherical surface-shaped bottom portion 41 for holding the operating shaft 3 in a non-operation position, first inclined surfaces 42, 43, 44 and 45 formed in a radial shape at an outer circumference of the bottom portion 41, and second inclined surfaces 46, 47, 48 and 49 formed in a radial shape at an outer circumference of the first inclined surfaces, are formed, and at the boundaries between the first inclined surfaces and the second inclined surfaces, swelled step portions 50, 51, 52 and 53 are formed, respectively.