Abstract: In one embodiment of the present invention, a cash drawer is provided which can have its drawer latch solenoid actuated by one of a plurality of different voltages. The plurality of different voltages can include at least three different voltages. In another illustrative embodiment, the cash drawer of the present invention provides a multi-voltage cash drawer with fly-back protection.

Abstract: A vehicle, such as a loader, has an operator-controlled hydrostatic drive that includes hydrostatic motors to drive wheels. The speed of the motors is proportional to an operator input provided to a controller that regulates the flow of hydraulic fluid from a pressure source to the motors. The regulation of fluid under pressure to the motors is achieved by utilizing electrical displacement control pumps that provide fluid flow in proportion to an input signal. The motors are fixed displacement motors, and when the wheels overrun as the vehicle rolls down an incline, the motors will act as pumps. The movement of the wheels is sensed to provide a signal to the controller to adjust one or both of the control pumps to provide a balancing counter pressure at the work port of the motor to insure that the vehicle will not creep or roll when it should be stopped.

Abstract: A peripheral device is connectable to a computer having one of a first interface and a second interface. The first interface communicates with the peripheral device over a differential data connection having a first data conductor and a second data conductor. The second interface communicates with the peripheral device over a clock conductor and a single ended data connection which includes a data conductor. The peripheral device has first and second communication conductors configured for connection to the first and second data conductors in the differential data connection when the computer includes the first interface and is configured for connection to the first data conductor in the single ended data connection and the clock conductor when the computer is provided with the second interface.

Abstract: A method and apparatus position a plurality of data heads relative to a plurality of surfaces of at least one disc in a disc drive. One of the plurality of data heads corresponds to each of the plurality of surfaces. The data heads are provided for writing information to the surfaces and reading information from the surfaces. Each of the data heads may be simultaneously positioned relative to the corresponding surfaces using the embedded servo information. Information can be simultaneously transferred relative to the corresponding surfaces using the plurality of data heads. Uninterrupted sequential data transfers may also be executed without servo overhead. Further, an apparatus is provided for accomplishing such servo control, as is a method of accomplishing model-based servo control.

Abstract: A servo test is performed on a disc drive. The servo test includes performing a position error sample (PES) threshold test on tracks in the disc drive and identifying those tracks that fail the PES servo sample test. Zero acceleration path (ZAP) learning is performed on the identified tracks, and is performed on less than all of the tracks on the disc drive. Another PES servo threshold test is performed on the identified tracks to determine whether they pass the servo test, given the ZAP learning process.

Abstract: A disc drive includes a disc mounted to a motor, an access arm, and a slider connected to the access arm. A comb-type microactuator is mounted on the slider and a transducer is mounted to the microactuator such that actuation of the microactuator moves the transducer relative to the slider.

Abstract: A method of writing to a disc in a disc drive includes receiving data to be written to a designated area of the disc wherein the designated area has a beginning, an end, and contains a defective portion. The data is written to the disc starting from the beginning of the designated area and proceeding toward the end of the designated area. The data is written to a temporary buffer, external to the disc, upon reaching the defective portion of the designated area. Writing is then resumed, writing data to the designated area of the disc, upon passing the defective portion of the designated area.

Abstract: The present invention is drawn to a hybrid data reconstruction system and method for a data storage device. Data is selectively stored according to one of two or more redundancy schemes such that critical data is stored according to a scheme which has a higher degree of redundancy.

Abstract: The speech recognizer includes a dictation language model providing a dictation model output indicative of a likely word sequence recognized based on an input utterance. A spelling language model provides a spelling model output indicative of a likely letter sequence recognized based on the input utterance. An acoustic model provides an acoustic model output indicative of a likely speech unit recognized based on the input utterances. A speech recognition component is configured to access the dictation language model, the spelling language model and the acoustic model. The speech recognition component weights the dictation model output and the spelling model output in calculating likely recognized speech based on the input utterance. The speech recognizer can also be configured to confine spelled speech to an active lexicon.

Abstract: The present invention segments a non-segmented input text. The input text is received and segmented based on parameter values associated with parameterized word formation rules. In one illustrative embodiment, the input text is processed into a form which includes parameter indications, but which preserves the word-internal structure of the input text. Thus, the parameter values can be changed without entirely re-processing the input text.

Abstract: A method and system for retrieving information from an electronic dictionary. The system stores all information about words that have the same normalized form into a single entry within the electronic dictionary. The normalized form of a word has all lower case letters and no diacritical marks. When information is to be retrieved from the dictionary for a word, the word is first normalized and then the dictionary is searched for the entry corresponding to that normalized word. The entry that is found contains the information for that word.

Abstract: A peripheral device is connectable to a computer having one of a first interface and a second interface. The first interface communicates with the peripheral device over a differential data connection having a first data conductor and a second data conductor. The second interface communicates with the peripheral device over a clock conductor and a single ended data connection which includes a data conductor. The peripheral device includes an interface detection component coupled to at least one of first and second communication conductors used to communicate between the peripheral device and the computer. The interface detection component is configured to detect which of the first and second interfaces the peripheral device is connected to.

Abstract: The present invention provides a method in a computer system of integrating a compression system with an operating system. The computer system preferably comprises at least a memory device and one storage device. A user-supplied device driver is provided for storage devices that are not supported by the computer system to enable the computer system to communicate with the storage devices. In response to initialization of the computer system, the operating/compression system is loaded into the memory device and begins executing before any user-supplied device drivers are loaded into the memory device. Any compressed volume files located on the computer system are assigned drive letters at this time. When the user-supplied device drivers are loaded into the memory device, drive letters are assigned to the various storage devices. A drive letter conflict resolution scheme is provided to resolve conflicts that occur when the operating system attempts to assign a drive letter.

Abstract: The present invention provides a dual axis articulated computer input device. Position sensors are configured to provide position information indicative of a position of two handle members relative to one another.

Abstract: First and second instances of a message are received over a wireless connection. It is determined whether the first and second instances of the message contain an error. If both instances contain an error, an error free instance of the message is reconstructed from the two erroneous instances by merging portions of the first and second instances.

Abstract: A language model comprising a plurality of augmented-word n-grams and probabilities corresponding to such n-grams. Each n-gram is comprised of a sequence of augmented words. Each augmented word is comprised of the orthographic representation of the word together with a tag representing lexical information regarding the word, such as syntactic or semantic information. Also disclosed are a method of building such a language model, a method of automatically recognizing speech using the language model and a speech recognition system that employs the language model.

Abstract: Embodiments of the present invention illustrate various configurations of a channel-to-controller interface. In one embodiment, width of symbols crossing the interface is fixed, as is the clock rate. In other embodiments, the symbol width is variable, and the clock rate is also varied based upon the size of the interface symbol width and the operation of the channel.

Abstract: The present invention includes a servo control system for controlling a dual stage actuator in a disc drive. The disc drive includes a data head for accessing information on a disc surface, and the dual stage actuator includes a coarse actuator and at least one fine actuator. The control system includes a fine actuator driver and a coarse actuator driver for driving the fine and coarse actuators, respectively. The control system also includes an observer which receives the coarse and fine actuator input signals and estimates a response of the coarse and fine actuators. A gain boost circuit is coupled to the fine and coarse actuator drivers and introduces a gain boost to reduce track following error in a desired frequency range.

Abstract: A system and method for attenuating the effect of rotational vibration on the positioning of the read/write head in a disc drive. The rotational acceleration of the disc drive body is sensed and applied to an adaptive filter that produces a feedforward signal designed to offset the effects of the rotational vibration. The adaptive filter adjusts its parameters based on the rotational acceleration signal, the position error signal of the servo system, and a transfer function relating the actual position signal to the feedforward signal. The plant estimate of the transfer function relating the actual position signal to the feedforward signal is determined off-line and stored for use by the adaptive filter in adjusting its parameters during operation.

Abstract: The present invention includes a servo control system for controlling a dual stage actuator in a disc drive. The disc drive includes a data head for accessing information on a disc surface, and the dual stage actuator includes a coarse actuator and at least one fine actuator. The control system includes a fine actuator driver and a coarse actuator driver for driving the fine and coarse actuators, respectively. The control system also includes an observer which receives the coarse and fine actuator input signals and estimates a response of the coarse and fine actuators.