Abstract: A tool combination includes a main body including a first compartment and a second compartment defined therein. A tool bit holder is formed on the main body. A tool bit carrier is removably mounted in the second compartment of the main body and carries at least one tool bit that is releasably held by the tool bit holder. A cap is releasably attached to the tool bit holder for enclosing the tool bit holder. An illumination device carrier is removably mounted in the first compartment and carries an illumination device for providing illumination.

Abstract: A cell scheduling method and apparatus are described in which cells are efficiently scheduled in four steps. In a first step, a VC is selected for servicing and serviced if necessary. In a second step, cells from the serviced VCs are scheduled for transmission. In a third step, jitter is controlled. In a fourth step, final departure of cells is scheduled.

Abstract: A tool holder includes a main body having a compartment and a recess defined therein. The main body further includes a bit holder formed on an end thereof. A bit holding plate is removably received in the compartment of the main body and releasably holds at least one bit thereon. The bit can be releasably held in place by the bit holder. A cork remover is pivotally connected to the main body and movable between a storage position in the recess and an operative position outside the recess. A cap is provided to house the bit holder to provide an aesthetically pleasing effect.

Abstract: A hysteresis circuit is disclosed in which a first signal path, including a hysteresis feedback loop, is separate from a second signal path that is used to carry data. When the signal input to the hysteresis circuit (also referred to hereinafter as the "input signal") crosses a first preselected hysteresis reference of ("threshold") level, the hysteresis feedback loop, which includes threshold adjustment means, will cause a change in the threshold from the first preselected level to a second preselected level. This adjustment of threshold level will take place in parallel with the data being propagated to the output over said separate second signal path. A subsequent crossing of the second preselected threshold level by said input signal will cause the first threshold level to the reset and so on.