US PATENT SUBCLASS 360 / 39
GENERAL PROCESSING OF A DIGITAL SIGNAL

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


360 /   HD   DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL

39GENERAL PROCESSING OF A DIGITAL SIGNAL {10}
40  DF  .~> In specific code or form {4}
45  DF  .~> Pulse crowding correction
46  DF  .~> Head amplifier circuit
47  DF  .~> Redundant or complimentary tracks
48  DF  .~> Data in specific format
49  DF  .~> Address coding
50  DF  .~> Inter-record gap processing
51  DF  .~> Data clocking {1}
53  DF  .~> Data verification
54  DF  .~> Data recirculation

DEFINITION

Classification: 360/39

(under the class definition) Subject matter of specific utility in treating a digital signal for recording or reproducing.

(1) Note. This subclass is the residual area for devices and methods concerned with processing digital signals in a manner not provided for above. Digital signal processing properly classified above should not, as a matter of course, be cross-referenced here.

(2) Note. Although specific mechanical apparatus may be included in the subject matter of this and indented subclasses, the subject matter herein remains generally electronic in nature and its utility is in distinctive handling of a digital signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55+, for generally usable recording or reproducing techniques.

69+, for automatically controlling recorder or reproducer mechanisms.

79, for recorder or reproducer control of an external device 81+, 88 and 101, for recorder or reproducer mechanisms.

102+, 104+, 110+, and 131+, for recorder or reproducer elements.

SEE OR SEARCH CLASS

178, Telegraphy, appropriate subclasses, particularly 17+ for code recorders.

235, Registers,

61+, for calculators combined with recorders.

326, Electronic Digital Logic Circuitry, for electronic digital circuits operating on a digital signal.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

1+, for pulse discriminating or selecting and subclasses 100+ for pulse parameter (e.g., amplitude) control.

341, Coded Data Generation or Conversion,

15, for a magnetic pattern reading type analog to digital converter and subclasses 50+ for code converters. 364, Electrical Computers and Data Processing Systems,

130+, for general purpose digital control systems (i.e., for example, computer arrangements for open and closed loop feedback control).

365, Static Information Storage and Retrieval, appropriate subclass for the static storage/retrieval of information.

708, Electrical Computers: Arithmetic Processing and Calculating,

100+, for digital calculating computers and generic digital arithmetic processing circuits and methods.

711, Electrical Computers and Digital Processing Systems: Memory,

1+, for addressing combined with specific memory configurations (e.g., extended, expanded, dynamic, etc.) in a digital data processing system, subclasses 100+ for generalized address forming, and subclasses 200+ for generalized storage accessing and control in a digital data processing system.

714, Error Detection/Correction and Fault Detection/Recovery,

1+, for reliability and availability in a digital data processing system.