Abstract: Values are grouped into a first set of groupings of values. Based on inner codes, the number of groupings in the first set of groupings that have at least one erroneous value is determined. If the number of groupings in the first set of groupings that have an erroneous value is fewer than a maximum number of groupings that can be corrected by outer codes, a seek operation is begun. During the seek operation, the outer codes are used to detect and correct the erroneous values that were produced during the reading of values. In other aspects, a parity section for a data section of a data storage device is dirtied before writing any data to the data section such that if writing to the data section is interrupted, the parity section will indicate that it should not be used to correct data read from the data section.

Abstract: Values are grouped into a first set of groupings of values. Based on inner codes, the number of groupings in the first set of groupings that have at least one erroneous value is determined. If the number of groupings in the first set of groupings that have an erroneous value is fewer than a maximum number of groupings that can be corrected by outer codes, a seek operation is begun. During the seek operation, the outer codes are used to detect and correct the erroneous values that were produced during the reading of values. In other aspects, a parity section for a data section of a data storage device is dirtied before writing any data to the data section such that if writing to the data section is interrupted, the parity section will indicate that it should not be used to correct data read from the data section.

Abstract: A surgical endoscope support device for supporting a surgical endoscope at an end of a support arm over, and proximate to, a surgical site of a patient, the endoscope support device comprising a support and pivot body including a socket housing and a pivot ball, the socket housing having a centrally positioned inner bore in open communication between upper and lower surfaces, the inner bore having a spherical surface, and the pivot ball, positionable within the inner bore of the socket housing, in pivotable contact with the spherical surface of the inner bore, the pivot ball including a cylindrical bore through the center of the pivot ball, the cylindrical bore having a substantially uniform inner diameter along a long axis of the cylindrical bore, and an endoscope adapter having a substantially cylindrical outer wall and a substantially cylindrical central bore, the outer wall having an outer dimension substantially equivalent to the inner diameter of the cylindrical bore of the pivot ball for a sufficiently