Abstract: Systems and methods of generating a security key for an integrated circuit device include generating a plurality of key bits with a physically unclonable function (PUF) device. The PUF can include a random number generator that can create random bits. The random bits may be stored in a nonvolatile memory. The number of random bits stored in the nonvolatile memory allows for a plurality of challenge and response interactions to obtain a plurality of security keys from the PUF.

Abstract: A semiconductor device and a method of manufacturing the same are provided. The semiconductor device includes a first transistor, a first resistive random access memory (RRAM) resistor, and a second RRAM resistor. The first resistor includes a first resistive material layer, a first electrode shared by the second resistor, and a second electrode. The second resistor includes the first electrode, a second resistive material layer, and a third electrode. The first electrode is electrically coupled to the first transistor.

Abstract: A hand tool includes a housing defining a receiving space, a shaft rotatably extending through the receiving space and having opposite end portions that are exposed from the housing, a ring-shaped flywheel disposed rotatably in the receiving space and surrounding the shaft, and a speed-increasing gear mechanism. The gear mechanism includes a start gear coupled co-rotatably to the shaft and disposed in the receiving space, at least one transmission gear rotatably disposed in the receiving space and meshing with the start gear, and a final gear coupled co-rotatably to the flywheel, disposed in the receiving space and meshing with the transmission gear. A rotational speed of the final gear is greater than that of the start gear.

Abstract: A suction cup is provided, including: a suction member, a first check valve and a second check valve. The suction member includes a seat body, a control member movably disposed on the seat body, a first flow channel and a second flow channel. The seat body includes a seat portion and a cup portion which is elastically deformable and disposed on the seat portion. The seat body has a first gas chamber, and a second gas chamber is defined between the control member and the seat body. The first flow channel is communicated with first gas chamber and the second gas chamber. The first check valve is disposed within the first flow channel and openably closes the first flow channel. The second check valve is disposed within the second flow channel, openably closes the second flow channel.

Abstract: A suction cup is provided, including: a suction member, a first check valve and a second check valve. The suction member includes a seat body, a control member movably disposed on the seat body, a first flow channel and a second flow channel. The seat body includes a seat portion and a cup portion which is elastically deformable and disposed on the seat portion. The seat body has a first gas chamber, and a second gas chamber is defined between the control member and the seat body. The first flow channel is communicated with first gas chamber and the second gas chamber. The first check valve is disposed within the first flow channel and openably closes the first flow channel. The second check valve is disposed within the second flow channel, openably closes the second flow channel.

Abstract: A suction cup is provided, including: a suction member, including a seat body, a control member movably disposed on the seat body and a cup portion disposed on the seat body, the suction member further including a first air chamber, a second air chamber, a flow channel, an outlet channel and an inlet channel, the flow channel communicating with the first and second air chambers, the outlet channel communicating with the first air chamber, the control member including an air-tight ring portion, the air-tight ring portion openably closing and blocking the outlet channel, the inlet channel communicating with the second air chamber and the atmosphere; a check valve, disposed within the flow channel, openably closing the flow channel and allowing air to flow from the second air chamber to the first air chamber; a pressure relief valve portion, openably sealing and blocking the inlet channel.

Abstract: A cathode lock comprising: a lock body 1 mounted on a door or on a door frame and a lock tongue capable of locking with the lock body 1. A lock catch 6 capable of locking with the lock tongue is arranged on the lock body 1. A solenoid 9 capable of generating an electromagnetic force when electrified is also mounted on the lock body 1. A breaking apparatus 10 capable of jamming the lock catch is connected to one end of the solenoid 9. The solenoid 9 is electrified to generate the electromagnetic force, and the breaking apparatus 10 is driven into motion under the effect of the electromagnetic force, thus allowing the breaking apparatus 10 to either be abutted against or separated from the lock catch 6. Also disclosed is a method for cathode lock to switch between a normally-opened state and a normally-closed stated.

Abstract: An energy-saving magnetic lock comprising: a first lock module (I) mounted to a part of a door such as a doorframe; and a second lock module (II), mounted to the other part of the door such as a door panel which can pivot about the doorframe, for interacting with the first lock module (I), wherein the first lock module (I) comprises: an electromagnet (1); a slot (12); a trip rod (11) inserted inside the slot; a sensor (13) equipped at the slot end; a member, which is arranged between the trip rod (11) and the slot (12), allowing the trip rod to move toward the slot opening axially a predetermined distance when the pressing force on the head of the trip rod (11) is less than the predetermined value; a circuit control board (15), wherein the trip rod (11) has a length equal to the distance between the slot opening and a surface of the sensor (13) facing the slot opening, the second lock module (II) comprises: an iron plate (2) installed on or in the part of the door panel by a main screw (21), wherein the main

Abstract: A hand tool includes a housing defining a receiving space, a shaft rotatably extending through the receiving space and having opposite end portions that are exposed from the housing, a ring-shaped flywheel disposed rotatably in the receiving space and surrounding the shaft, and a speed-increasing gear mechanism. The gear mechanism includes a start gear coupled co-rotatably to the shaft and disposed in the receiving space, at least one transmission gear rotatably disposed in the receiving space and meshing with the start gear, and a final gear coupled co-rotatably to the flywheel, disposed in the receiving space and meshing with the transmission gear. A rotational speed of the final gear is greater than that of the start gear.

Abstract: A suction cup device includes a suction cup having a plug hole, a plug member movably disposed in the plug hole, a positioning seat connected to the suction cup, a pressing member movably inserted into the positioning seat, an air storage space defined by the positioning seat, the pressing member and the suction cup, and an air vent channel communicating the air storage space with an ambient environment. A manual air vent valve is disposed on and is movable along with said pressing member to switch the air vent channel between closed and open states, where the air storage space is sealed and air in the air storage space is released to the ambient environment through the air vent channel, respectively.

Abstract: A cathode lock comprising: a lock body 1 mounted on a door or on a door frame and a lock tongue capable of locking with the lock body 1. A lock catch 6 capable of locking with the lock tongue is arranged on the lock body 1. A solenoid 9 capable of generating an electromagnetic force when electrified is also mounted on the lock body 1. A breaking apparatus 10 capable of jamming the lock catch is connected to one end of the solenoid 9. The solenoid 9 is electrified to generate the electromagnetic force, and the breaking apparatus 10 is driven into motion under the effect of the electromagnetic force, thus allowing the breaking apparatus 10 to either be abutted against or separated from the lock catch 6. Also disclosed is a method for cathode lock to switch between a normally-opened state and a normally-closed stated.

Abstract: A hand tool includes a housing defining a receiving space, a shaft rotatably extending through the receiving space and having opposite end portions that are exposed from the housing, a ring-shaped flywheel disposed rotatably in the receiving space and surrounding the shaft, and a speed-increasing gear mechanism. The gear mechanism includes a start gear coupled co-rotatably to the shaft and disposed in the receiving space, at least one transmission gear rotatably disposed in the receiving space and meshing with the start gear, and a final gear coupled co-rotatably to the flywheel, disposed in the receiving space and meshing with the transmission gear. A rotational speed of the final gear is greater than that of the start gear.

Abstract: A multi-functional fruit and vegetable shaping tool includes a main body and a separation member. The main body has a main wall surrounding a receiving space, and a plurality of cutters that have different functions and are formed in the main wall at angularly spaced-apart positions. The separation member is removably disposed in the receiving space to isolate at least one of the cutters that is selected for performing a desired function from the rest of the cutters. The separation member is connected non-rotatably to the main wall and divides the receiving space into an unshielded operative region proximal to the at least one of the cutters, and a shielded inoperative region proximal to the rest of the cutters.

Abstract: A juice extracting device contains a collecting assembly, a covering set, a body, and a pumping member. The collecting assembly includes a cavity defined, an open segment having a pouring hole, a collection segment having a guiding hole, and at least one limiting seat. The covering set includes a hollow neck and a circular holder. The body includes a filtering disc, a plurality of defining ribs for retaining with the at least one limiting seat, a hollow column; a hollowly conical post having a cutting edge, a stop piece, and an extraction portion. The pumping member is served to draw juices in the collecting assembly and includes a spray head and a drawing tube for drawing the juices.

Abstract: A multi-functional fruit and vegetable shaping tool includes a main body and a separation member. The main body has a main wall surrounding a receiving space, and a plurality of cutters that have different functions and are formed in the main wall at angularly spaced-apart positions. The separation member is removably disposed in the receiving space to isolate at least one of the cutters that is selected for performing a desired function from the rest of the cutters. The separation member is connected non-rotatably to the main wall and divides the receiving space into an unshielded operative region proximal to the at least one of the cutters, and a shielded inoperative region proximal to the rest of the cutters.

Abstract: A container seal includes a positioning unit and a sealing unit. The positioning unit has a positioning member, a support member, and a passage extending along an axis. The support member includes a surrounding wall defining a top opening that communicates with the passage, a fixing part and an abutting part. The sealing unit includes an elastic cover member, and a connecting member connected to the fixing part. The cover member has front and rear ends, and a pressing portion pressable to convert the cover member from a covering position, where the cover member is tilted relative to the axis, abuts against the abutting part, and covers the top opening, to an opening position, where the cover member uncovers the support member.

Abstract: A juice extracting device contains a collecting assembly, a covering set, a body, and a pumping member. The collecting assembly includes a cavity defined, an open segment having a pouring hole, a collection segment having a guiding hole, and at least one limiting seat. The covering set includes a hollow neck and a circular holder. The body includes a filtering disc, a plurality of defining ribs for retaining with the at least one limiting seat, a hollow column; a hollowly conical post having a cutting edge, a stop piece, and an extraction portion. The pumping member is served to draw juices in the collecting assembly and includes a spray head and a drawing tube for drawing the juices.

Abstract: A device for controlling a door, the device having: a body; an electromagnet arranged to generate a magnetic field for retaining the door; a coupling that couples the electromagnet to the body, the coupling being arranged to allow a movement of the electromagnet relative to the body; and a current supply that is arranged to supply the electromagnet with a current. The current supply is arranged to detect the movement of the electromagnetic and to cease supplying the current at a predetermined instant after detecting the movement of the electromagnet.

Abstract: A telescopic kettle contains a body; a fitting member secured on a bottom section of the body and includes at lease one hollow first tube and at lease one hollow second tube, both of which are axially connected together, and includes a first slot having a first folding segment; a smallest inner diameter of the first tube is larger than a largest outer diameter of the second tube; an outer connecting portion of the first tube and the second tube includes a second slot, and an inner connecting portion of the first tube and the second tube includes a second folding segment; the first tube includes a third slot formed on an inner wall thereof and a third folding segment disposed on an outer wall thereof; the base extending from a bottom end of the fitting member; a covering member including an opening, an outlet, and includes a push button.