Abstract: A manufacturing method of a membrane circuit board includes the following steps. Firstly, a screen plate, a first substrate body and a second substrate body are provided. Then, a conductive paste and a first circuit pattern are formed on the screen plate. Then, the conductive paste and the first circuit pattern are simultaneously printed on the first substrate body by a screen printing process. The first substrate body, the first circuit pattern and the conductive paste are collaboratively formed as a first membrane substrate. Then, a second circuit pattern is formed on the screen plate. Then, the second circuit pattern is printed on the second substrate body by the screen printing process. The second substrate body and the second circuit pattern are collaboratively formed as a second membrane substrate. Then, the second membrane substrate is aligned with the first membrane substrate.

Abstract: An antenna structure of few components and reduced size which functions by switching between components to achieve radiation in three different frequency bands includes two radiating portions, a feeding portion, a matching circuit, and a first switching circuit. With the first switching circuit closed, current flows along a first radiating portion to activate a first frequency band. A second radiating portion obtains the current from the first switching circuit by coupling with the first radiating portion, to activate a second frequency band. Current in the first radiating portion can activate a third frequency band. With the first switching circuit open, current in the first radiating portion activates radiation in the first frequency band. The second radiating portion can radiate in second frequency band by coupling current from the first radiating portion. Frequency multiplication of the first frequency band can activate the third frequency band.

Abstract: An antenna structure includes a housing, a feed portion, a ground portion, a first radiator, and a second radiator. The housing includes a first radiating portion and a second radiating portion. The first radiator and the second radiator are both positioned in the housing. When the feed portion feeds current, the current flows through the first radiating portion and is grounded through the ground portion to activate a first operating mode. When the feed portion feeds current, the current is further coupled to the first radiator through the first radiating portion, and the first radiator activates a second operating mode. When the second radiator feeds current, the second radiator activates a third operating mode. When the second radiator feeds current, the current is further coupled to the second radiating portion through the second radiator, and the second radiating portion activates a fourth operating mode.

Abstract: A keycap forming method includes the following steps. Firstly, a stabilizer bar is fixed on a first male mold. Then, a keycap is formed through a second male mold and a female mold according to an injection molding process. Then, the second male mold and the female mold are separated from each other, so that the keycap is fixed on the female mold. Then, the first male mold and the female mold are stacked on each other, so that the stabilizer bar and the keycap are combined together. Then, the first male mold and the female mold are separated from each other. Consequently, the stabilizer bar is detached from the first male mold. By using the keycap forming method, it is not necessary to manually assemble the stabilizer bar with the keycap.

Abstract: An antenna structure of few components and reduced size which functions by switching between components to achieve radiation in three different frequency bands includes two radiating portions, a feeding portion, a matching circuit, and a first switching circuit. With the first switching circuit closed, current flows along a first radiating portion to activate a first frequency band. A second radiating portion obtains the current from the first switching circuit by coupling with the first radiating portion, to activate a second frequency band. Current in the first radiating portion can activate a third frequency band. With the first switching circuit open, current in the first radiating portion activates radiation in the first frequency band. The second radiating portion can radiate in second frequency band by coupling current from the first radiating portion. Frequency multiplication of the first frequency band can activate the third frequency band.

Abstract: An antenna structure includes a housing, four feed sources, a first radiator, a second radiator, and a third radiator. The housing includes a first radiating portion and a second radiating portion. The first to third radiators are positioned in the housing. The first radiator is spaced apart from the second radiator. The four feed sources respectively connect to the first radiating portion, the second radiating portion, the first radiator, and the third radiator. The first radiating portion activates a first operation mode and a second operation mode. The second radiating portion activates a third operation mode. The first to third radiators activate a fourth operation mode, a fifth operation mode, and a sixth operation mode.

Abstract: A keycap forming method includes the following steps. Firstly, a stabilizer bar is fixed on a first male mold. Then, a keycap is formed through a second male mold and a female mold according to an injection molding process. Then, the second male mold and the female mold are separated from each other, so that the keycap is fixed on the female mold. Then, the first male mold and the female mold are stacked on each other, so that the stabilizer bar and the keycap are combined together. Then, the first male mold and the female mold are separated from each other. Consequently, the stabilizer bar is detached from the first male mold. By using the keycap forming method, it is not necessary to manually assemble the stabilizer bar with the keycap.

Abstract: A mouse device with a button feedback mechanism is provided. The mouse device includes a mouse body and a button module. The mouse body includes an upper case, a lower case and a hollow cylinder. The button module includes a button, an elastic element, an attracting element and a suspension arm. The elastic element is disposed within the hollow cylinder and located under the pressing part. The button is contacted with the elastic element. The attracting element is installed on the upper case. The suspension arm includes a connection segment and a free segment. The connection segment is penetrated through the hollow cylinder and connected with the elastic element. The free segment is located under the attracting element. Consequently, the mouse device provides the sound feedback and the touch feedback.

Abstract: An antenna structure includes a housing, a feed portion, a ground portion, a first radiator, and a second radiator. The housing includes a first radiating portion and a second radiating portion. The first radiator and the second radiator are both positioned in the housing. When the feed portion feeds current, the current flows through the first radiating portion and is grounded through the ground portion to activate a first operating mode. When the feed portion feeds current, the current is further coupled to the first radiator through the first radiating portion, and the first radiator activates a second operating mode. When the second radiator feeds current, the second radiator activates a third operating mode. When the second radiator feeds current, the current is further coupled to the second radiating portion through the second radiator, and the second radiating portion activates a fourth operating mode.

Abstract: A mouse device with a button feedback mechanism is provided. The mouse device includes a mouse body and a button module. The mouse body includes an upper case, a lower case and a hollow cylinder. The button module includes a button, an elastic element, an attracting element and a suspension arm. The elastic element is disposed within the hollow cylinder and located under the pressing part. The button is contacted with the elastic element. The attracting element is installed on the upper case. The suspension arm includes a connection segment and a free segment. The connection segment is penetrated through the hollow cylinder and connected with the elastic element. The free segment is located under the attracting element. Consequently, the mouse device provides the sound feedback and the touch feedback.

Abstract: A luminous keyboard with a gaming function includes a gaming program, plural keys, plural light-emitting elements and a control unit. When one of the plural keys is pressed down, a corresponding pressing signal is generated. When one of the plural light-emitting elements is turned on to emit a light beam, the corresponding key is illuminated. The control unit is connected with the plural keys, the plural light-emitting elements and the gaming program. The control unit turns on or turns off the plural light-emitting elements according to settings of the gaming program. Alternatively, the control unit turns off the light-emitting element corresponding to the illuminated key when the control unit receives the pressing signal corresponding to the illuminated key. In such way, the luminous keyboard can be used to play a game.

Abstract: A keyboard device includes a key frame. The key frame includes a main body and a receiving hole. The receiving hole runs through the main body along a vertical direction. A keycap is movable within the receiving hole. The main body includes a first substrate layer, a second substrate layer and a contact layer. The first substrate layer and the second substrate layer are staked along the vertical direction. The contact layer is arranged between the first substrate layer and the second substrate layer. The second substrate layer is combined with the first substrate layer through the contact layer. The first substrate layer is made of a first material. The second substrate layer is made of a second material. The hardness of the second material is lower than the hardness of the first material.

Abstract: An antenna structure includes a housing, four feed sources, a first radiator, a second radiator, and a third radiator. The housing includes a first radiating portion and a second radiating portion. The first to third radiators are positioned in the housing. The first radiator is spaced apart from the second radiator. The four feed sources respectively connect to the first radiating portion, the second radiating portion, the first radiator, and the third radiator. The first radiating portion activates a first operation mode and a second operation mode. The second radiating portion activates a third operation mode. The first to third radiators activate a fourth operation mode, a fifth operation mode, and a sixth operation mode.

Abstract: A key structure includes a supporting plate, a movable plate, a keycap and a limiting structure. The supporting plate has supporting plate opening. The movable plate has a movable plate opening. The supporting plate is disposed over the movable plate. The keycap is disposed over the supporting plate. The limiting structure is disposed on the keycap and inserted in the supporting plate opening. When the movable plate is moved to a disabled position, the limiting structure is not aligned with the movable plate opening and the limiting structure in the supporting plate opening is stopped by the movable plate. Consequently, the keycap is not allowed to be moved.

Abstract: A keyboard and a notebook computer with the keyboard are provided. The keyboard includes a membrane circuit board and plural keys. Each key includes a keycap, a bulge and a key frame. The bulge is connected with the keycap. The key frame has a guiding groove corresponding to the bulge. When the keyboard is in a usage status, the bulge is not pushed by the guiding groove and thus the keycap is at a higher position. Since the keycap is at the higher position, the movable distance of the keycap is increased and the tactile feel of depressing the keycap is enhanced. While a top cover of the notebook computer is closed to cover the keyboard, the key frame is moved horizontally. As the bulge is pushed by the guiding surface of the guiding groove, the height of the keycap is lowered.

Abstract: A microorganism capable of fixing a carbon oxide and performing fermentation and its preparation method and use are provided, wherein the preparation method comprises: (a) providing a first parental strain which is able to fix a carbon oxide; (b) providing a second parental strain which is able to perform fermentation; (c) preparing a first protoplast and a second protoplast from the first parental strain and the second parental strain, respectively; (d) subjecting the first protoplast and the second protoplast to fuse to provide a fusant; and (e) incubating and selecting the fusant to obtain a target strain. The target strain is useful in the production of an organic compound such as an organic acid and an alcohol, and one embodiment of the target strain is Clostridium tyrobutyricum ITRI02001, deposited at German Collection of Microorganisms and Cell Cultures (Deutsche Sammlung von Mikroorganismen and Zellkulturen GmbH, DSMZ) under the accession number DSM 32077.

Abstract: A microorganism capable of fixing a carbon oxide and performing fermentation and its preparation method and use are provided, wherein the preparation method comprises: (a) providing a first parental strain which is able to fix a carbon oxide; (b) providing a second parental strain which is able to perform fermentation; (c) preparing a first protoplast and a second protoplast from the first parental strain and the second parental strain, respectively; (d) subjecting the first protoplast and the second protoplast to fuse to provide a fusant; and (e) incubating and selecting the fusant to obtain a target strain. The target strain is useful in the production of an organic compound such as an organic acid and an alcohol, and one embodiment of the target strain is Clostridium tyrobutyricum ITRI02001, deposited at German Collection of Microorganisms and Cell Cultures (Deutsche Sammlung von Mikroorganismen and Zellkulturen GmbH, DSMZ) under the accession number DSM 32077.

Abstract: An isolated biologically pure culture of Clostridium tyrobutyricum ITRI04001 or an isolated biologically pure culture of Clostridium tyrobutyricum having the genotypic characteristics of ITRI04001 useful for syngas fermentation. Volatile free acids are produced by a method comprising culturing a microorganism having the genotypic characteristics of ITRI04001 in a medium; providing at least one substrate comprising at least one carbon source chosen from CO and CO2 to the microorganism; and recovering at least one free volatile free acid. Syngas can be the at least one substrate in these processes for producing volatile free acids.

Abstract: Methods for producing an IgG2 antibody preparation enriched for one of several IgG2 structural isoforms, differing by disulfide connectivity in the hinge region of the antibody, are disclosed.