Abstract: An electrical connector includes an insulating body having a base and a tongue protruding from the base, a metal casing surrounding the insulating body, multiple terminals grouped into upper and lower rows and fixedly at the insulating body, a shielding sheet disposed at the insulating body and located between the upper and lower rows of terminals, and a positioning member. A positioning slot is disposed at the base. A first buckling portion is disposed inside the positioning slot. Each terminal has a contact portion extending forward and exposed partially from the tongue, and a soldering portion extending backward out of the base. The shielding sheet has a reserved space corresponding to the positioning slot. The positioning member has multiple positioning holes for positioning the soldering portions, and a second buckling portion passing through the reserved space and fixed to the first buckling portion.

Abstract: A method for measuring distance and areas by mobile devices combined with light beam projectors that combines a mobile device with a light beam projector which projects the light beams in the direction identical to the one of the image retrieved from a photodetector module of the mobile device, so as to project a first measuring point and a second measuring point and produce a first distance and a second distance, and then calculate the moving coordinates of the first and second measuring points with a first azimuth data and a second azimuth date detected by an azimuth sensor of the mobile device. Thus the method would be able to calculate the coordinate distance between the first and second measuring points, even the area surrounded by the coordinate distance, the first distance, and the second distance.

Abstract: An electrical connector for mating with a mating connector includes an insulating body having a base and a tongue extending forward from the base. An upper row of terminals and a lower row of terminals are disposed in the insulating body. Each upper or lower row terminal has a contact portion exposed from an upper or a lower surface of the tongue, respectively. An upper and a lower grounding sheets are laminated to the upper and lower surfaces of the tongue respectively, and are assembled and connected to each other. A shielding case covers the periphery of the insulating body, and the upper and lower grounding sheets. The shielding case, the insulating body, and the upper and lower grounding sheets together form an insertion space for the mating connector to be inserted therein. The shielding case is respectively and electrically conducted to the upper and lower grounding sheets.

Abstract: Crystalline forms of pemetrexed diacid are provided (Forms 1 and 2) which are readily produced for either laboratory-scale or industrial scale. Processes for the preparation of Forms 1 and 2 are also provided.

Abstract: A mating connector includes a plastic body, a first terminal group and a second terminal group received in the plastic body, a retaining elastic sheet retained at the plastic body and located at a side of the first terminal group and the second terminal group, a middle shielding sheet located between the first terminal group and the second terminal group, and a shielding case contacting the middle shielding sheet. An urging portion is extended from the middle shielding sheet and abuts the retaining elastic sheet. The middle shielding sheet shields an interference signal between plate surfaces of the first and second terminal groups. The retaining elastic sheet shields an interference signal between side surfaces of the first and second terminal groups.

Abstract: An emitting device using smart mobile electronic device as operation interface comprises a connector having a circuit board, the circuit board having an electrical connection portion at a front end, and the electrical connection portion set to match specifications of a transmission port of a smart mobile electronic device for being inserted into the transmission port to get the power and signal; a light emitting module installed at a side of the circuit board; a drive circuit couple between the circuit board and light emitting module. Whereby when the connector of the emitting device is electrically connected to the transmission port, the power module provides the power to the emitting device to turn on or off the light emitting module of the emitting device through the user's operation interface on the touch screen.

Abstract: An electrical connector includes a body having a tongue, a pair of first differential signal terminals and a pair of second differential signal terminals fixed to the body, and a middle shielding sheet fixed to the tongue, and located between the first and second differential signal terminals. The tongue includes an upper surface having two depressed first receiving slots and a lower surface having two depressed second receiving slots. A first groove is depressed from each first receiving slot. A second groove is upward depressed from each second receiving slot. Each first differential signal terminal has a first contact portion fixed to and exposed from the upper surface of the tongue. Each second differential signal terminal has a second contact portion fixed to and exposed from the lower surface of the tongue. The first and second contact portions are partially accommodated in the first and second receiving slot respectively.

Abstract: A method for molding an electrical connector, includes: S1: providing a row of first terminals, and integrally wrapping an insulating block on the first terminals by insert molding, wherein the insulating block wraps a part of each first terminal, and the insulating block and the row of first terminals together form a first terminal module; S2: providing a middle shielding sheet; and S3: integrally wrapping an insulating body around the middle shielding sheet and the first terminal module by insert molding.

Abstract: An electrical connector includes a body having a tongue, a row of first terminals insert-molded in the body, a depressed slot, and a positioning slot. The tongue includes a first surface having multiple receiving slots. Each first terminal has a contact portion accommodated in the receiving slot and exposed from the first surface. The first terminals include a pair of differential signal terminals and multiple non-high-speed terminals. The depressed slot is depressed from the first surface, located between contact portions of two differential signal terminals, and in communication with two adjacent receiving slots. The positioning slot is depressed from the first surface, located between contact portions of two adjacent non-high-speed terminals, or of adjacent non-high-speed terminal and differential signal terminal, and in communication with two adjacent receiving slots. The length of the positioning slot is less than the length of the depressed slot.

Abstract: An electrical connector includes a body having a tongue, a row of first terminals insert-molded in the body, a depressed slot, and a positioning slot. The tongue includes a first surface having multiple receiving slots. Each first terminal has a contact portion accommodated in the receiving slot and exposed from the first surface. The first terminals include a pair of differential signal terminals and multiple non-high-speed terminals. The depressed slot is depressed from the first surface, located between contact portions of two differential signal terminals, and in communication with two adjacent receiving slots. The positioning slot is depressed from the first surface, located between contact portions of two adjacent non-high-speed terminals, or of adjacent non-high-speed terminal and differential signal terminal, and in communication with two adjacent receiving slots. The length of the positioning slot is less than the length of the depressed slot.

Abstract: A mating connector includes a plastic body, a first terminal group and a second terminal group received in the plastic body, a retaining elastic sheet retained at the plastic body and located at a side of the first terminal group and the second terminal group, a middle shielding sheet located between the first terminal group and the second terminal group, and a shielding case contacting the middle shielding sheet. An urging portion is extended from the middle shielding sheet and abuts the retaining elastic sheet. The middle shielding sheet shields an interference signal between plate surfaces of the first and second terminal groups. The retaining elastic sheet shields an interference signal between side surfaces of the first and second terminal groups.

Abstract: A method of preparing an epitope for a secondary antibody detected protein tag, comprising: constructing a expressing vector, comprising a nucleotide sequence for encoding the secondary antibody detected protein tag comprising at least one epitope selected from at least one primary antibody which is detected by corresponding secondary antibody; expressing the vector in a host cell; and obtaining the secondary antibody detected protein tag which is expressed in the host cell. Further, a method for constructing a protein molecular weight marker ladder, comprising constructing a plurality of recombinant protein tags with different molecular weights, wherein each the recombinant protein tag comprises at least one epitope of primary antibody. Besides, a secondary antibody detected protein tag comprises at least two peptide sequences of epitopes selected from primary antibodies of at least two different species.

Abstract: An electrical connector for mating with a mating connector includes an insulating body having a base and a tongue extending forward from the base. An upper row of terminals and a lower row of terminals are disposed in the insulating body. Each upper or lower row terminal has a contact portion exposed from an upper or a lower surface of the tongue, respectively. An upper and a lower grounding sheets are laminated to the upper and lower surfaces of the tongue respectively, and are assembled and connected to each other. A shielding case covers the periphery of the insulating body, and the upper and lower grounding sheets. The shielding case, the insulating body, and the upper and lower grounding sheets together form an insertion space for the mating connector to be inserted therein. The shielding case is respectively and electrically conducted to the upper and lower grounding sheets.

Abstract: An emitting device using smart mobile electronic device as operation interface comprises a connector having a circuit board, the circuit board having an electrical connection portion at a front end, and the electrical connection portion set to match specifications of a transmission port of a smart mobile electronic device for being inserted into the transmission port to get the power and signal; a light emitting module installed at a side of the circuit board; a drive circuit couple between the circuit board and light emitting module. Whereby when the connector of the emitting device is electrically connected to the transmission port, the power module provides the power to the emitting device to turn on or off the light emitting module of the emitting device through the user's operation interface on the touch screen.

Abstract: The invention relates to an audio plug structure improvement, particularly to the audio plug coinciding with the standard specification of a 2.5 mm, 3.5 mm or 6.5 mm audio plug. The audio plug uses the composite structure of the conductive portion and insulating portion and the design of angle rotation to obtain power or signal without affecting normal use of the speaker of the electronic product. The ON/OFF switch is formed as long as the audio plug is rotated at a predetermined angle. Moreover, a predetermined electronic element can be arranged at the internal or external of the audio plug and the power or signal is obtained by the audio jack for having other functions except for transmitting the audio signal.

Abstract: The invention relates to an audio plug structure improvement, particularly to the audio plug coinciding with the standard specification of a 2.5 mm, 3.5 mm or 6.5 mm audio plug. The audio plug uses the composite structure of the conductive portion and insulating portion and the design of angle rotation to obtain power or signal without affecting normal use of the speaker of the electronic product. The ON/OFF switch is formed as long as the audio plug is rotated at a predetermined angle. Moreover, a predetermined electronic element can be arranged at the internal or external of the audio plug and the power or signal is obtained by the audio jack for having other functions except for transmitting the audio signal.

Abstract: A coaxial connector and a method for providing a normal force in an electrical connector. The coaxial connector includes a first terminal having a first contact portion and a second terminal having a second contact portion. Before an external device is inserted into the coaxial connector for the first time, the first contact portion and the second contact portion form a first relative positional relationship. After the external device is disengaged from the coaxial connector, the second contact portion urges against the first contact portion upwards to form a third relative positional relationship. The third relative positional relationship is different from the first relative positional relationship.

Abstract: The invention relates to a 3.5 mm audio plug with built-in light source, particularly to a light-emitting element arranged in a hollow tube and two conductive portions and several insulating portions arranged on a predetermined position of a surface of the audio plug for acquiring power and supplying the power to the light-emitting element in order to form a laser pen. At the same time, the electronic products are able to maintain normal output sound from a speaker when the audio plug is inserted into the audio jack of the predetermined electronic product, avoiding missed calls. Moreover, the audio plug is arranged in the audio jack except the light-emitting hole; that is, the present invention is nearly integrated with the smartphone 70, which is not only beautiful but easy to carry.

Abstract: The invention relates to a 3.5 mm audio plug with built-in light source, particularly to a light-emitting element arranged in a hollow tube and two conductive portions and several insulating portions arranged on a predetermined position of a surface of the audio plug for acquiring power and supplying the power to the light-emitting element in order to form a laser pen. At the same time, the electronic products are able to maintain normal output sound from a speaker when the audio plug is inserted into the audio jack of the predetermined electronic product, avoiding missed calls. Moreover, the audio plug is arranged in the audio jack except the light-emitting hole; that is, the present invention is nearly integrated with the smartphone 70, which is not only beautiful but easy to carry.

Abstract: A coaxial connector and a method for providing a normal force in an electrical connector. The coaxial connector includes a first terminal having a first contact portion and a second terminal having a second contact portion. Before an external device is inserted into the coaxial connector for the first time, the first contact portion and the second contact portion form a first relative positional relationship. After the external device is disengaged from the coaxial connector, the second contact portion urges against the first contact portion upwards to form a third relative positional relationship. The third relative positional relationship is different from the first relative positional relationship.