Abstract: A card assembly is used for enabling a first electronic device to be compatible with a card used in a second electronic device. The card assembly defines a first group of specification parameters of the first electronic device to be detachable received in the first electronic device, and further defines a second group of specification parameters of the card. The second group of specification parameters allows the card to be detachable received in the card assembly. When the card assembly, with the card, is received in the first electronic device, the card is directly and electrically connected to the first electronic device.

Abstract: A locking device for locking a first component to a second component comprises a fastener and a head. The fastener has an elongated main body, and the head is connected to one end of the main body. The main body inserts into the first component to lock with the second component. The head resists the first component, the head includes a resistance surface facing the main body and at least one restriction structure defined on the resistance surface of the head. The at least one restriction structure engages with the first component, such that the fasteners can be arranged on the first component in a predetermined manner. An electronic apparatus using the locking device is also provided.

Abstract: An electronic device with latching mechanism comprises a cover, a base, and a middle case located between the cover and the base. The cover on edges defines a plurality of protruding tabs each with a through hole. The base defines a plurality of hooks. The middle case on the inner surface defines a plurality of protruding portions corresponding to the protruding tabs of the cover in number and arrangement, and a plurality of limiting portions corresponding to the hooks of the base in number and arrangement. The protruding portions each with an angled surface angling toward the cover are received in the through holes of the cover. The limiting portions engage the hooks of the base.

Abstract: A card assembly is used for enabling a first electronic device to be compatible with a card used in a second electronic device. The card assembly defines a first group of specification parameters of the first electronic device to be detachable received in the first electronic device, and further defines a second group of specification parameters of the card. The second group of specification parameters allows the card to be detachable received in the card assembly. When the card assembly, with the card, is received in the first electronic device, the card is directly and electrically connected to the first electronic device.

Abstract: The present invention relates to a musical pillow. The music pillow includes a body, a pillow core defining a first receiving cavity corresponding to a users' head, and a music player device. The body includes a first base, and two sidewalls extending from two opposite sides of the first base. Two free ends of the two sidewalls face each other to define a body opening therebetween. The first base and the two sidewalls cooperatively define a receiving space. The pillow core is received in the receiving space, while the first receiving cavity is communicated with the body opening. The music player device includes two speakers positioned on the sidewalls respectively and a playing unit positioned in the first base. The speakers are electrically connected to the playing unit.

Abstract: A measurement apparatus for measuring a distance between a base surface and an upper surface of a stepped structure of a workpiece. The measurement apparatus includes a supporting member having an upper surface for supporting the workpiece, a holding member fixed on the top surface, and a micrometer. The holding member includes a reference platform and a depression formed on the reference platform and facing the upper surface. The micrometer is fixed to the holding member and includes an extendable measuring shaft with a contacting portion extending out of the reference platform. The distance is measured by pushing the workpiece into the depression until the base surface make contact with the reference platform.

Abstract: The present invention relates to a musical pillow. The music pillow includes a body, a pillow core defining a first receiving cavity corresponding to a users' head, and a music player device. The body includes a first base, and two sidewalls extending from two opposite sides of the first base. Two free ends of the two sidewalls face each other to define a body opening therebetween. The first base and the two sidewalls cooperatively define a receiving space. The pillow core is received in the receiving space, while the first receiving cavity is communicated with the body opening. The music player device includes two speakers positioned on the sidewalls respectively and a playing unit positioned in the first base. The speakers are electrically connected to the playing unit.

Abstract: A depth checking device includes a body member, a pressing member, a checking member and an adjustment nut. The body member defines a stepped through hole forming a stopping surface inside. The pressing member includes a first end and an opposite second end. The first end includes a first end surface defining a first opening. The second end defines a second opening. The checking member is mounted in the stepped through hole and includes an indication end adjacent to the first end and a probe end. The indication end includes a second end surface. The adjustment nut is screwed on the checking member and supported by the stopping surface in a position where the first end surface is coplanar with the second end surface and the probe end protrudes from the body member with a protruding length of the probe end same as a designed depth of a fixing hole.

Abstract: An overlay film for covering a touch screen of an electronic device is disclosed. The touch screen is configured for showing a number of icons thereon for receiving user inputs. The overlay film is a thin, transparent layer. The overlay film defines a plurality of through holes corresponding to the shapes and positions of the icons on the touch screen.

Abstract: A depth checking device includes a body member, a pressing member, a checking member and an adjustment nut. The body member defines a stepped through hole forming a stopping surface inside. The pressing member includes a first end and an opposite second end. The first end includes a first end surface defining a first opening. The second end defines a second opening. The checking member is mounted in the stepped through hole and includes an indication end adjacent to the first end and a probe end. The indication end includes a second end surface. The adjustment nut is screwed on the checking member and supported by the stopping surface in a position where the first end surface is coplanar with the second end surface and the probe end protrudes from the body member with a protruding length of the probe end same as a designed depth of a fixing hole.

Abstract: A measurement apparatus for measuring a distance between a base surface and an upper surface of a stepped structure of a workpiece. The measurement apparatus includes a supporting member having an upper surface for supporting the workpiece, a holding member fixed on the top surface, and a micrometer. The holding member includes a reference platform and a depression formed on the reference platform and facing the upper surface. The micrometer is fixed to the holding member and includes an extendable measuring shaft with a contacting portion extending out of the reference platform. The distance is measured by pushing the workpiece into the depression until the base surface make contact with the reference platform.