Abstract: An earthmoving system includes a blade, a controller, and a blade control system configured to control the positioning of the blade. While grading, the earthmoving system is configured to simultaneously position the blade according to each of a fixed slope grading mode, a design driven control grading mode, and an fixed load grading mode.

Abstract: An earthmoving system is disclosed. The earthmoving system includes a blade, a controller, and a blade control system configured to control the positioning of the blade. While grading, the earthmoving system is configured to simultaneously position the blade according to each of a fixed slope grading mode, a design driven control grading mode, and an fixed load grading mode.

Abstract: A method of controlling a blade of an earthmoving system is disclosed. The method includes enabling independent blade control so that the blade is controllable independent of the terrain contour design while a cutting edge of the blade is beneath the terrain contour design, and receiving first sensor signals from one or more first sensors of the earthmoving system, where the sensor signals indicate that the cutting edge of the blade is within a threshold distance from the terrain contour design. In response to receiving the first sensor signals, the method automatically controls the cutting edge of the blade to the terrain contour design, where the movement of the blade is dependent on the terrain contour design.

Abstract: A method of controlling a blade of an earthmoving system is disclosed. The method includes enabling independent blade control so that the blade is controllable independent of the terrain contour design while a cutting edge of the blade is beneath the terrain contour design, and receiving first sensor signals from one or more first sensors of the earthmoving system, where the sensor signals indicate that the cutting edge of the blade is within a threshold distance from the terrain contour design. In response to receiving the first sensor signals, the method automatically controls the cutting edge of the blade to the terrain contour design, where the movement of the blade is dependent on the terrain contour design.

Abstract: A visual indication system for a machine is provided. The visual indication system includes an output module configured to be displayed at an external location relative to an internal portion of a cabin of the machine and configured to provide a visual indication viewable. The visual indication system also includes a controller communicably coupled to the output module. The controller is configured to receive a signal indicative of a parking status and an implement status of the machine. Further, the controller is configured to determine a locked state associated with the parking status and the implement status. The controller is configured to transmit the visual indication of the determined locked state to the output module.

Abstract: A visual indication system for a machine is provided. The visual indication system includes an output module configured to be displayed at an external location relative to an internal portion of a cabin of the machine and configured to provide a visual indication viewable. The visual indication system also includes a controller communicably coupled to the output module. The controller is configured to receive a signal indicative of a parking status and an implement status of the machine. Further, the controller is configured to determine a locked state associated with the parking status and the implement status. The controller is configured to transmit the visual indication of the determined locked state to the output module.

Abstract: Methods for making an erosion resistant gas turbine engine compressor airfoil substrates coated with a diamond-like coating (DLC), wherein the coating airfoil substrates are protected from ingested abrasive particulates, may include the step of performing a hydrogen-free chemical vapor deposition (CVD) process by ablation of a graphite target in a vacuum. The DLC may be comprised predominantly of sp3 (tetrahedral) carbon, and may be devoid of detectable amounts of hydrogen.

Abstract: An apparatus and method for sampling semivolatile compounds is disclosed. A collection bag is placed around an air conditioning vent on an aircraft. An opening in the collection bag receives air from the air conditioning vent into the bag. An exit in the collection bag allows the air sample to escape from the collection bag. Vacuum applied by tubing at the exit pulls the air sample from the bag. Flow is adjusted so that the inflow into the collection bag exceeds the outtake, thereby inflating the bag. The inflation of the collection bag assures that the air being sampled is only air originating from the air conditioning vent.

Abstract: A cutter assembly for mowing apparatus comprises a sickle guard having individual guards which each consist of a guard body and an upper lip. The guard bodies are connected to a cutter bar via mounting pads. Each guard is provided with a rearward knife slot within which knife sections can move back and forth in a reciprocating manner. A hold-down member is provided to act against an upper face of a knife section, the hold-down member extending through the upper lip.

Abstract: A cutter assembly for a mowing apparatus having at least two guards. Each guard includes a guard body, a tine, and a knife slot for receiving a knife section. A connecting web connects the two guards. An upper trashbar is fixed between the two guards above the knife section. Extending from the upper trashbar is a hold-down member movable into contact with the knife section.

Abstract: A fingerprint image is processed from its original gray tone image to a binary (black and white) image. The "ridge" skeletal image is formed of the black portions of the binary image, being derived from the ridges of the fingerprint. A separate "valley" skeletal image is formed of the white portions of the binary image, being derived from the valleys interposed between the ridges. Ridge minutiae are detected from the ridge skeletal image and processed to eliminate apparently inappropriate minutiae. Separately, valley minutiae are detected from the valley skeletal image and processed to eliminate apparently inappropriate minutia. Then the ridge and valley minutiae are processed together. Only those ridge minutiae that can be correlated locally with individual valley minutiae survive to be passed to a fingerprint matcher.

Abstract: A fingerprint matcher links together minutiae from a search print and minutiae from a file print in a chain to determine if the two prints match. Minutiae are extracted from the images of the search and file prints. Geometric and other relationships between close minutiae in each print are calculated. A table of candidate "steps" is formed. Each step consists of four minutiae, two close search minutiae and two close file minutiae. Each "rung" of the step is a search-file pair, the candidate mating of presumed identical minutiae in the two images. Each "riser" of the step is formed by two close minutiae, search minutiae on the one side and file minutiae on the other. A candidate step is entered into the table if and only if the relationships between search minutiae are similar to those between file minutiae. The number of candidate steps is reduced by requiring that each step adhere to various rules regarding the presence of other steps in the table and the identity of minutiae therein.

Abstract: A cutter assembly for mowing apparatus comprises a sickle guard having individual guards which each consist of a guard body and an upper lip. The guard bodies are connected to a cutter bar via mounting pads. Each guard is provided with a rearward knife slot within which knife sections can move back and forth in a reciprocating manner. A hold-down member is provided to act against an upper face of a knife section, the hold-down member extending through the upper lip.

Abstract: A cutter assembly for mowing apparatus comprises a sickle guard having individual guards whose guard bodies are connected to a cutter bar via mounting pads. Each guard is provided with a rearward knife slot within which knife sections can move back and forth in a reciprocating manner. Hold-down members are provided to act against an upper face of the knife sections, the hold-down members being formed as ball plungers and are screwed into a front part of a hold-down arm. The hold-down arm at its rearward end is fixed by a base to the cutter bar by means of guard mounting screws.

Abstract: A phoneme estimator in a speech-recognition system includes energy detect circuitry for detecting the segments of a speech signal that should be analyzed for phoneme content. Speech-element processors then process the speech signal segments, calculating nonlinear representations of the segments. The nonlinear representation data is applied to speech-element modeling circuitry which reduces the data through speech element specific modeling. The reduced data are then subjected to further nonlinear processing. The results of the further nonlinear processing are again applied to speech-element modeling circuitry, producing phoneme isotype estimates. The phoneme isotype estimates are rearranged and consolidated, that is, the estimates are uniformly labeled and duplicate estimates are consolidated, forming estimates of words or phrases containing minimal numbers of phonemes. The estimates may then be compared with stored words or phrases to determine what was spoken.

Abstract: A phoneme estimator in a speech-recognition system includes energy detect circuitry for detecting the segments of a speech signal that should be analyzed for phoneme content. Speech-element processors then process the speech signal segments, calculating nonlinear (powers and products) representations of the segments. The nonlinear representation data is applied to speech-element modeling circuitry which reduces the data through speech element specific modeling. The reduced data are then subjected to further nonlinear processing. The results of the further nonlinear processing are again applied to speech-element modeling circuitry, producing phoneme isotype estimates. The phoneme isotype estimates are rearranged and consolidated, that is, the estimates are uniformly labeled and duplicate estimates are consolidated, forming estimates of words or phrases containing minimal numbers of phonemes. The estimates may then be compared with stored words or phrases to determine what was spoken.

Abstract: A phoneme estimator (12) in a speech-recognition system (10) includes trigger circuitry (18, 22) for identifying the segments of speech that should be analyzed for phoneme content. Speech-element processors (24, 26, and 28) calculate the likelihoods that currently received speech contains individual phonemes, but they operate only when the trigger circuitry identifies such segments. The computation-intensive processing for determining phoneme likelihoods is thus performed on only a small subset of the received speech segments. The accuracy of the speech-element processors (24, 26, and 28) is enhanced because these processors operate by recognition of patterns not only in elements of the data-reduced representations of the received speech but also in higher-ordered products of those elements; that is, these circuits employ non-linear modeling for phoneme identification.

Abstract: A data security device which includes storage means for storing a master cipher key, cryptographic apparatus for performing cryptographic operations and control means for controlling the writing of a master cipher key into the storage means, controlling the transfer of the master cipher key to the cryptographic apparatus and controlling the cryptographic apparatus to perform cryptographic operations. When a new master cipher key is written into the storage means, the old master cipher key is automatically overwritten with an arbitrary value, after which the new master key may be written into the storage means. The cryptographic apparatus of the data security device includes storage means, a cipher key register and cipher means for performing a cipher function on data stored in the cryptographic apparatus storage means under control of a working cipher key stored in the cipher key register with the resulting ciphered data being stored in the cryptographic apparatus storage means.

Abstract: A communication security system for data transmissions between remote terminals and a host system. The remote terminals and the host system include data security devices capable of performing a variety of cryptographic operations. At initialization time, a host master key is written into the host data security device and the host system generates a series of terminal master keys for the remote terminals. Protection is provided for the terminal master keys by enciphering them under a variant of the host master key. The terminal master keys are then written into the data security devices of the respective remote terminals to permit cryptographic operations to be performed. When a communication session is to be established between a designated remote terminal and the host system, a random number is generated and defined as an operational key enciphered under the host master key which permits the operational key to be used at the host system for enciphering or deciphering data operations.