Abstract: A RAID storage system includes an outer stripe size that is an integer multiple J of a product of an inner stripe size and a number of data disks in a RAID disk set, where J is greater than one (1).

Abstract: An apparatus (10) for helping to protect an occupant of a vehicle includes a housing (20) including a vent opening (70). An air bag (14) is inflatable to deploy away from the housing (20). An inflation fluid source (26) provides inflation fluid for inflating the air bag (14). A vent member (80) has a closed condition blocking inflation fluid flow through the vent opening (70) and an open condition permitting inflation fluid flow through the vent opening. A first tether (114) is configured to release the vent member (80) for movement from the closed condition when the air bag (14) has deployed a first distance away from the housing (20). A second tether (140) is configured to place the vent member (80) in the closed condition when the air bag (14) has deployed a second distance away from the housing (20), the second distance being farther away from the housing than the first distance.

Abstract: A vehicle occupant protection apparatus (10) includes an occupant protection device (14) and an inflation fluid source (12) that is actuatable for providing inflation fluid for inflating the occupant protection device (14). The apparatus (10) also includes a conduit (34) for directing a flow of inflation fluid from the inflation fluid source (12) to the occupant protection device (14). The conduit (34) includes two rigid portions (40 and 42) and a flexible portion (70) that is interposed between the rigid portions (40 and 42). The flexible portion (70) of the conduit (34) directs the flow of inflation fluid from one rigid portion (40) to the other rigid portion (42) and permits the rigid portions (40 and 42) to be moved relative to one another while remaining connected through the flexible portion (70).

Abstract: A vehicle occupant protection apparatus (10d) includes an inflatable vehicle occupant protection device (300), a support member (336) having a vent opening (364), and a vent member (440) that is associated with the vent opening (364). The vent member (440) has a first condition in which the vent member (440) closes the vent opening (364) and a second condition in which the vent member (440) is spaced apart from the vent opening (364) enabling fluid flow through the vent opening (364). A fastener (470) attaches the vent member (440) to the support member (336). The fastener (470) includes structure (482) for securing the vent member (440) in the first condition prior to initial inflation of the protection device (300) and for enabling the vent member (440) to move from the first condition to the second condition upon initial inflation of the protection device (300).

Abstract: A vehicle occupant protection apparatus (10d) includes an inflatable occupant protection device (300) and a support member (316). A vent opening (350) extends through the support member (316). A vent member (360) is associated with the vent opening (350). The vent member (360) initially closes the vent opening (350). Inflation fluid moves the vent member (360) relative to the support member (316) for enabling a flow of inflation fluid through the vent opening (350). A tether (386) extends between the inflatable occupant protection device (300) and the vent member (360). The tether (386) is responsive to inflation of the inflatable occupant protection device (300) away from the support member (316) by more than a predetermined distance for moving the vent member (360) relative to the support member (316) for reducing the flow of inflation fluid through the vent opening (350).

Abstract: A vehicle occupant protection apparatus (10) includes an inflatable occupant protection device (12) and a support member (40) having a vent opening (50) through which inflation fluid may flow. The apparatus (10) also includes a mechanism (58) for controlling a flow of inflation fluid through the vent opening (50). Inflation fluid pressure within the inflatable occupant protection device (12) tends to move the mechanism (58) for increasing a flow of inflation fluid through the vent opening (50). The mechanism (58) is responsive to inflation of the inflatable occupant protection device (12) beyond a predetermined distance for restricting the flow of inflation fluid through the vent opening (50). The apparatus (10) further includes a locking member (96) for blocking the mechanism (58) from increasing the flow of inflation fluid through the vent opening (50) after the inflatable occupant protection device (12) has inflated beyond the predetermined distance.

Abstract: A vehicle rollover sensing apparatus and method are provided for detecting an overturn condition of the vehicle. The rollover sensing apparatus includes an angular rate sensor for sensing attitude rate of change of a vehicle and producing an output signal indicative thereof. The rollover sensing apparatus also has an integrator for integrating the sensed attitude rate of change signal over a variable time window and producing an attitude angle. The rollover sensing apparatus further includes deployment logic for comparing the attitude angle and attitude rate of change to a pair of variable threshold values, with a gray-zone that varies based on time, and an output for deploying a vehicle overturn condition signal based on the comparison. Adaptive bias removal and output minimum logic reduces bias and noise associated with the sensed signal.

Abstract: A vehicle rollover sensing apparatus and method are provided for detecting an overturn condition of the vehicle. The rollover sensing apparatus includes an angular rate sensor for sensing attitude rate of change of a vehicle and producing an output signal indicative thereof. The rollover sensing apparatus also has an integrator for integrating the sensed attitude rate of change signal over a variable time window and producing an attitude angle. The rollover sensing apparatus further includes a deployment logic for comparing the attitude angle and attitude rate of change to a pair of variable threshold value with a gray-zone that varies based on time, and an output for deploying a vehicle overturn condition signal based on the comparison. Adaptive bias removal and output minimum logic reduces bias and noise associated with the sensed signal.

Abstract: A digital data bus system for connecting a controller and a disk drive. Data on the disk is stored in track sectors containing a header and data. The controller includes a high-speed processor which performs a header compare operation comparing the values received from a header with the expected contents of the header and operations which determine when all of the data in a track sector has been transferred. The digital data bus system includes a bus for transferring data between the controller and the disk drive and a header-data mode bus for providing a header mode signal and a data mode signal from the controller to the disk drive. During an operation transferring data between the controller and the disk, the disk drive responds to the header mode signal by transferring a header to the controller.

Abstract: There is disclosed a circuit for providing a comparison signal representing phase relationship between a clock pulse train and a variable rate input pulse train. The comparison signal can be used to synchronize clock and input pulse trains. The circuit includes a phase difference measuring circuit providing a first signal proportional to phase difference between input pulse train and clock pulse train, the signal having related discontinuities at the points of minimum and maximum phase difference between input and clock pulse trains. A second signal is generated representing a selected value of phase difference, the selected value being greater than the minimum phase difference and less than the maximum phase difference. First and second signals are then compared to provide a signal representing difference between the measured and selected values of phase difference.

Abstract: A system for generating a write clock signal for use with a rotating magnetic memory apparatus, such as a disk memory, in a data processing system which includes a slotted disk transducer which produces an intermediate pulse signal having a repetition rate related to the disk speed, a freqency-locked loop which produces a write clock pulse output signal having a repeptition rate related to the intermediate repetition rate independently of variations in the disk speed. The time response of the loop can be relatively low to lock the write clock output signal frequency to relatively slow variations in the intermediate frequency and to avoid locking to any extraneous high frequency variations therein. A coded slot region provides a coded pulse sequence, having selected pulses missing therefrom which can be decoded for providing an index pulse, the missing pulses being supplied to the pulses from the transducer to form the intermediate pulse signal.

Abstract: A system is provided for positioning a transducer over a magnetic media by the sensing of previously recorded information. The previously recorded information is in the form of a plurality of tracks containing position information. A servo transducer traverses a path over the tracks of position information and produces a signal in response to sensing the position information. A position detection circuit analyzes the signal thus produced and defines two separate data tracks for each and every individual track of position information thus traversed.