Industrial Technology Research Institute

Tsinghua University

Topray Technologies, Inc.

Chun-Yao Wang

Chin-Sung Liu

Chia-Hao Ou

Shih-Chieh Wu

Shing-Wu Tung

Jing-Yang Jou

Jan-An Hsieh

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.

Apparatus for clamping large and small disks

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.

Apparatus for aligning and clipping different size compact discs for disc device

A method for verifying a circuit design includes a step of assigning numerical values 1/ato input ports of the circuit design according to a function a=(a&#x2212;1)+1, wherein i represents the number of the input port and the numerical value ais not equal to 2 or 1. Preferably, ais equal to or larger than 3, and is a positive integer. Particularly, the numerical value represents l's probability. In addition, the present method further includes a step of calculating an output value at an output port of the circuit design based on the numerical values assigned to the input port, and calculating the output value is performed from the input port to the output port at a Boolean gate level.

Method for verifying a circuit design by assigning numerical values to inputs of the circuit design

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.

Growing community of inventors

Hsinchu, Taiwan

Chun-Yao Wang