Abstract: An enhanced push-button includes a keycap disposed on an elastic member and having a top surface and an opposing bottom surface, and a reinforcing member mounted on the bottom surface of the keycap and having an outer surface facing the elastic member and an abutting portion located on the outer surface. The abutting portion has a contact surface recessed on the outer surface. The elastic member extends into the abutting portion such that the contact surface is abutted against the elastic member for allowing the keycap to be pressed with the reinforcing member against the elastic member to trigger a circuit switch. The invention can have better overall structural rigidity and operating feel and can maintain the pressing quality of the push-button and is suitable for low profile keyboards.

Abstract: A control device capable of providing rotational damping through a magnetic force is provided directly at the base of an electronic product and includes a supporting member, an adjusting member, and two magnetic members. The supporting member is provided at the base. The adjusting member is rotatably provided on the supporting member. The adjusting member has a bottom portion corresponding to a switch pre-installed in the base. The adjusting member further has a head portion outside the base. The two magnetic members are provided on the supporting member and the adjusting member respectively. The two magnetic members generate a magnetic force therebetween and thereby change the rotational damping between the supporting member and the adjusting member.

Abstract: A control device capable of providing rotational damping through an elastic force is provided directly at the base of an electronic product and includes an adjusting member and an elastic member. The adjusting member is rotatably provided at the base. The adjusting member has a bottom portion corresponding to a switch provided in the base. The adjusting member further has a head portion outside the base. The elastic member is provided between the adjusting member and the base. The elastic force of the elastic member acts between the head portion of the adjusting member and the base to change the rotational damping to which the adjusting member is subjected.

Abstract: A projection keyboard for a portable communication device includes a main body having a HDMI input hole; a battery unit disposed in the main body; a connection module connected with the main body and electrically connected with the battery unit, the connection module communicating with an external portable communication device by means of a wireless or wired connection way; a micro projection device pivotally connected to a front central portion of the main body and electrically connected with the battery unit and the HDMI input hole; and a wireless AV receiver electrically connected with the battery unit and the micro projection device. The micro projection device projects the image data to a front screen or on the wall directly like a computer. The present invention has a simple structure and is small in size, without a traditional screen, so the cost is lowered greatly and can be used conveniently.

Abstract: A tablet computer protective case with a keyboard includes an outer cover, an inner cover, a zipper, a partition, and two elastic members. When in use, the protective case is placed on a support plane and the zipper is unzipped to open the inner and outer covers. The keyboard is placed in an inner bottom concave cover of the inner cover, and the tablet computer is placed in an inner top concave cover of the inner cover. After that, a third upper support portion of the inner top concave cover of the inner cover is folded outward relative to a third lower support portion. The first upper support portion of the outer top concave cover of the outer cover is also folded outward relative to a first lower support portion. A second upper support portion of the partition is folded outward relative to a second lower support portion.