Abstract: A method of indicating a medium misfeed along a medium transport path comprising one or more rollers for conveying the medium along the medium transport path; a microphone for detecting the sound of the conveyed medium and producing a signal representing the sound; a processor for producing sound values from the signal; providing a sensitivity setting responsive to the sound values; and indicating the medium misfeed responsive to the sound values and the sensitivity setting.

Abstract: A method of indicating a medium misfeed along a medium transport path comprising one or more rollers for conveying the medium along the medium transport path; a microphone for detecting the sound of the conveyed medium and producing a signal representing the sound; a processor for producing sound values from the signal; providing a sensitivity setting responsive to the sound values; and indicating the medium misfeed responsive to the sound values and the sensitivity setting.

Abstract: A document handling apparatus having a document transport path for moving a document therethrough. A detector proximate the transport detects a multifeed indication in the transport path or a misfeed indication in the transport path. A processing system processes the indications and issues a termination signal if a multifeed or a misfeed, or both, is determined.

Abstract: A method for feeding sheets through a sheet transport path. Ultrasonic energy is directed toward a sheet in the transport path while an audio receiver detects audio data generated by the ultrasonic source and the mechanisms that transport the sheet. The audio data is processed to determine whether a multifeed or a misfeed condition exists in the transport path.

Abstract: A document handling apparatus having a document transport path for moving a document therethrough. A detector proximate the transport detects a multifeed indication in the transport path or a misfeed indication in the transport path. A processing system processes the indications and issues a termination signal if a multifeed or a misfeed, or both, is determined.

Abstract: A method for feeding sheets through a sheet transport path. Ultrasonic energy is directed toward a sheet in the transport path while an audio receiver detects audio data generated by the ultrasonic source and the mechanisms that transport the sheet. The audio data is processed to determine whether a multifeed or a misfeed condition exists in the transport path.

Abstract: A document handling apparatus having a document transport path for moving a document therethrough. A single detector proximate the transport detects a misfeed indication in the transport path. A processing system processes the indication and issues a termination signal if a misfeed is determined.

Abstract: A system and method in which a size of a pixel used to print lenticular depth images is changed to remove overlap in the slow scan print direction. A space adjustment of the space between scan lines can also be performed to remove pixel overlap. The pixel can also be elongated in the fast scan direction reducing fast scan resolution. An elongated pixel can be combined with skip space adjustment to remove pixel overlap. Printing the image lines in the fast scan or dot movement direction improves image quality. The print resolution in the fast scan direction can be reduced by increasing the printing rate compared to the data rate of the supplied image data, thereby cloning pixels in the fast scan direction, while maintaining a normal slow scan speed to normally print lines. Combinations of the above approaches to directional printing, removing slow scan pixel overlap and reducing file size can be accomplished.

Abstract: An information-bearing disk (magnetic-rigid or floppy, magneto-optical-Kerr or Faraday, optical or an equivalent thereof) includes equally spaced data-storing tracks grouped in a plurality of annular zones encircling the center of the disk. The ratio of the radius of the innermost track of any given zone to the radius of the innermost track of the adjacent inner zone is a constant, k, calculated from: ##EQU1## where R.sub.o is the outer radius of the outermost zone of the disk,R.sub.i is the inner radius of the innermost zone of the disk, andN is the number of disk zones.With this arrangement of data and by rotating the disk at each one of N substantially constant speeds corresponding to the playing back of data, respectively, from each of the N zones at a fixed predetermined rate, an aggregate number of only (2N-1) individually distinct playback data rates occurs when data is read from each of the N zones.

Abstract: An information-bearing record medium (magnetic tape, disk, or an equivalent thereof) includes a stream of binary bits in which a binary 1 bit is normally represented by a signal transition at the middle of its corresponding bit cell and a binary 0 bit is normally represented by a signal transition at the trailing edge of its corresponding bit cell so long as the immediately following bit cell contains a binary 0 bit, whereby the spacing between successive normal signal transitions is at least one bit cell and is no greater than two bit cells. The binary bit stream includes an address mark byte, for identifying a future substream of data bits, defined by a unique pattern of signal transition having at least one normal signal transition missing, whereby at least one pair of successive signal transitions is separated by more than two bit cells and less than four bit cells.

Abstract: An information-bearing disk (magnetic-rigid or floppy, magneto-optical - Kerr or Faraday, optical or an equivalent thereof) includes equally spaced data-storing tracks grouped in a plurality of annular zones encircling the center of the disk. The ratio of the radius of the innermost track of any given zone to the radius of the innermost track of the adjacent inner zone is a constant, k, calculated from: ##EQU1## where R.sub.o is the outer radius of the outermost zone of the disk,R.sub.i is the inner radius of the innermost zone of the disk, andN is the number of disk zones.