摘要:
The present invention discloses a method for node addition and removal of a circuit. The steps of the method include: (a) providing a circuit with a plurality of nodes; (b) selecting a target node for computing mandatory assignments (MAs) of stuck-at 0 and stuck-at 1 fault tests on the target node, respectively, by a processing unit; (c) finding an added substitute node by utilizing the MAs of stuck-at 0 and stuck-at 1 fault tests of the target node by the processing unit; and (d) replacing the target node by using the added substitute node closest to primary inputs; and (e) the steps (b)˜(d) are repeated for removing the replaceable nodes and simplifying the circuit.
摘要:
A reversible sequential element comprises a first logic gate and a second logic gate. The first logic gate includes a first input terminal, a second input terminal, a third input terminal, a first output terminal coupled to the first input terminal, a second output terminal and a third output terminal. The second logic gate includes a first input line, a second input line, a first output line and a second output line. When the first input terminal is set to a first state, the second input terminal is coupled to the third output terminal and the third input terminal is coupled to the second output terminal; otherwise, the second input terminal is coupled to the second output terminal and the third input terminal is coupled to the third output terminal. The third output terminal, second input line and second output line are coupled to each other. The input signal carried on the first input line is set as 0 so that the second output line and the first output line have the same output.
摘要:
An aligning and clipping apparatus for slot-in CD/DVD players/ROM to load different size discs is provided, including a base, a tray, at least two moveable clipping elements, at least two ejection elements, and an auxiliary clipping element. Two clipping elements are installed at the front end of the tray for loading and clipping the disc. The auxiliary clipping element is on the top of the base for improving the stability of the clipping. The ejection elements are at the two sides of the rear end of the tray for ejecting the clipping of the disc so that the disc is in the position for data reading and writing. To achieve the function for clipping different size discs, the moveable clipping elements are placed at a specific angle and a specific curvature. Therefore, the different size discs can be clipped and held.
摘要:
A built-in verification circuit having a circuit-under-test circuit, a test pattern generator, a bi-directional signal flow switch and three unidirectional, signal flow switches. The test pattern generator produces a testing pattern based on an input/output port order fault model. The bi-directional signal flow switch is positioned between the input terminal of the built-in verification circuit and the circuit-under-test circuit. The first unidirectional signal flow switch is positioned between the circuit-under-test circuit and the test pattern generator. The second unidirectional signal flow switch is positioned between the circuit-under-test circuit and the output terminal of the built-in verification circuit. The third unidirectional signal flow switch is positioned between the test pattern generator and the output terminal of the built-in verification circuit. The bi-directional signal flow switch and the first unidirectional signal flow switch are used for controlling the input terminal of the built-in verification circuit and the signal flow direction of the test pattern generator. The second and the third unidirectional signal flow switch are used for controlling the signal source of the output from the built-in verification circuit.
摘要:
A method for checking mask design of an integrated circuit, wherein the integrated circuit includes a plurality of functional elements arranged at different positions, the method includes generating implant layer data of each functional element of the integrated circuit according to characteristics of each functional element; generating mask design data of the integrated circuit according to circuit design of the integrated circuit; generating a block diagram of the integrated circuit according to the mask design data; determining a corresponding position of the functional element in the block diagram according to the implant layer data; and comparing the implant layer data of the functional element with the mask design data at the corresponding position.
摘要:
An apparatus for clamping both large and small disks is provided, including a disk tray inside a base, an upper case and two clamping mechanisms above the disk tray and the base. Each clamping mechanism includes a slider and a gripper structure. The gripper structure further includes a first gripper, a second gripper, and a resilient element located between the first and the second grippers. The second gripper includes a first belt-ring and a second belt-ring. When the disk is loaded, under the force of the resilient element, the first belt-ring and the second belt-ring hold the disk onto the disk tray firmly. When the first gripper moves to a specific position of the groove on the upper case, the first gripper causes the second gripper to rotate so that the resilient element stops to exert the force. Hence, the first belt-ring and the second belt-ring rotate upwards so as to complete the loading process. On the other hand, to eject a disk, the resilient element re-exerts force on the first gripper to cause the first belt-ring and the second belt-ring to rotate downwards to hold the disk until the disk is completely ejected to complete the ejecting process.
摘要:
An apparatus for clamping both large and small disks is provided, including a disk tray inside a base, an upper case and two clamping mechanisms above the disk tray and the base. Each clamping mechanism includes a slider and a gripper structure. The gripper structure further includes a first gripper, a second gripper, and a resilient element located between the first and the second grippers. The second gripper includes a first belt-ring and a second belt-ring. When the disk is loaded, under the force of the resilient element, the first belt-ring and the second belt-ring hold the disk onto the disk tray firmly. When the first gripper moves to a specific position of the groove on the upper case, the first gripper causes the second gripper to rotate so that the resilient element stops to exert the force. Hence, the first belt-ring and the second belt-ring rotate upwards so as to complete the loading process. On the other hand, to reject a disk, the resilient element re-exerts force on the first gripper to cause the first belt-ring and the second belt-ring rotate downwards to hold the disk until the disk is completely rejected to complete the rejecting process.
摘要:
A reversible sequential apparatus comprises a first logic gate and a second logic gate. The first logic gate includes first, second and third input terminals and first, second and third output terminals. The second logic gate includes first and second input lines and first and second output lines. The first input terminal for carrying a clock signal is coupled to the first output terminal and the second input terminal for carrying an input signal is coupled to the second output terminal. When the first input terminal and the second input terminal are simultaneously set to a first state, the level of the third output terminal is inverse to the level of the third input terminal; otherwise, the level of the third output terminal is identical to the level of the third input terminal. The third output terminal, second input line and second output line are coupled to each other. The input signal carried on the first input line is set to a constant level so that the second output line and the first output line have the same outputs.
摘要:
A reversible sequential apparatus comprises a first logic gate and a second logic gate. The first logic gate includes first, second and third input terminals and first, second and third output terminals. The second logic gate includes first and second input lines and first and second output lines. The first input terminal for carrying a clock signal is coupled to the first output terminal and the second input terminal for carrying an input signal is coupled to the second output terminal. When the first input terminal and the second input terminal are simultaneously set to a first state, the level of the third output terminal is inverse to the level of the third input terminal; otherwise, the level of the third output terminal is identical to the level of the third input terminal. The third output terminal, second input line and second output line are coupled to each other. The input signal carried on the first input line is set to a constant level so that the second output line and the first output line have the same outputs.
摘要:
A reversible sequential element comprises a first logic gate and a second logic gate. The first logic gate includes a first input terminal, a second input terminal, a third input terminal, a first output terminal coupled to the first input terminal, a second output terminal and a third output terminal. The second logic gate includes a first input line, a second input line, a first output line and a second output line. When the first input terminal is set to a first state, the second input terminal is coupled to the third output terminal and the third input terminal is coupled to the second output terminal; otherwise, the second input terminal is coupled to the second output terminal and the third input terminal is coupled to the third output terminal. The third output terminal, second input line and second output line are coupled to each other. The input signal carried on the first input line is set as 0 so that the second output line and the first output line have the same output.