Abstract: In accordance with the present invention, the circuit apparatus has a first and a second connection point each for respectively connecting to the first bay and second bay for communicating with them to determine which device in the bays is the master device. The circuit apparatus also has a third and a fourth connection point both of them for connecting to the first bay or second bay for receiving the Boolean algebra to determine which device is the master device. The circuit apparatus further has a fifth connection point for determining whether the circuit apparatus works.

Abstract: A tire lock includes a fixed arm, a lock tube, a movable arm and a lock rod. The movable arm is pivotally connected to the fixed arm at one end. Both the fixed arm and the movable arm comprise troughs, respectively. The lock tube is pivotally connected to the fixed arm. The lock rod is pivotally connected to the movable arm. The lock tube and the lock rod are respectively inserted through the troughs of the fixed arm and the movable arm, and have enlarged ends left outside of the troughs. By swinging the lock tube and the lock rod to engage together, the tire lock is locked on an opening of a tire.

Abstract: A transitional system uses two switching circuits to receive the same selection signal generated by an OR gate. This selection signal switches the two switch circuits and thereby assigns the floppy disc controller to connect to the corresponding bay connectors in accordance with which bay connector is connected to the floppy disc drive. Such assignment ensures that the floppy disc controller connects to the floppy disc drive.

Abstract: A transitional system uses two switching circuits to receive the same selection signal generated by an OR gate. This selection signal switches the two switch circuits and thereby assigns the floppy disc controller to connect to the corresponding bay connectors in accordance with which bay connector is connected to the floppy disc drive. Such assignment ensures that the floppy disc controller connects to the floppy disc drive.

Abstract: In accordance with the present invention, the circuit apparatus has a first and a second connection point each for respectively connecting to the first bay and second bay for communicating with them to determine which device in the bays is the master device. The circuit apparatus also has a third and a fourth connection point both of them for connecting to the first bay or second bay for receiving the Boolean algebra to determine which device is the master device. The circuit apparatus further has a fifth connection point for determining whether the circuit apparatus works.

Abstract: An automobile pedal lockset with vertical entry includes a lockset and a locking rod; a hollow primary and a secondary locking pipes being provided to the lockset; two slipways on opposite inner sides of the two locking pipes; two retainers at the lower end of both locking pipes; the locking rod in the primary locking pipe; a trough defined between both locking pipes connecting through two retainers to define a gap for direct entry of locking the lockset to a connection rod of brake pedal or clutch pedal to avoid impedance from other components in the car during the lateral operation of the lockset; walls on both sides of the slipways of both locking pipes; two circular channels on both sides of the stopper to hold against inner walls of the two circular channels of the stopper for both locking pipes to be firmly joined without being subject to forced open for burglar-proof results.