摘要:
A system for searching stored audio data is described. The system includes a memory configured to store audio data received from a radio receiver and a processing circuit. The processing circuit is configured to receive a search pattern, search the stored audio data for the search pattern, and provide audio data based on the search.
摘要:
A system for searching stored audio data is described. The system includes a memory configured to store audio data received from a radio receiver and a processing circuit. The processing circuit is configured to receive a search pattern, search the stored audio data for the search pattern, and provide audio data based on the search.
摘要:
An in-vehicle transmitter for wirelessly controlling a plurality of remote electronic systems is described. The transmitter includes a memory configured to store a plurality of wireless control code for the plurality of remote electronic systems. The plurality of wireless control code includes a first code to control the operation of a first remote electronic system and a second code different than the first code to control the operation of a second remote electronic system. The transmitter further includes a control circuit mounted to a vehicle interior element configured, in response to operator actuation of one switch, so that the transmitter provides a first wireless control signal having the first code and a second wireless control signal having the second code.
摘要:
A dual positional hall effect sensor 10 having an outer housing 12, an actuator 14, a linear movement sensor 20, and a rotational movement sensor device 22. The housing 12 includes a lower chamber 24 and an upper chamber 26, with a barrier wall 28 separating therebetween. The actuator 14 is made up of a coupling 32 for coupling to a movable device (not shown) that is to have its position sensed, a rod 34 that extends from the lower to the upper chamber, a collar 36 for retaining the actuator 14 within the lower chamber, and a key 38. The linear motion sensor 20 is unattachably positioned to set on collar 36, and includes a magnetically conducting pole piece 42 and a left and right magnets 44. The magnets 44 and pole piece 42 are positioned around the rod 34 in a "U" shaped configuration. The lower chamber 24 also includes a positionally fixed hall effect sensor 46 and a spring 48 positioned between the barrier wall 28 and the collar 36. The rotational movement sensor 22, located in the upper chamber 26, includes a sensor housing structure 52 that has a groove or slide 54 for insertion and sliding of the key 38. The sensor 22 further includes a magnetically conducting pole piece 56 and a top and bottom magnet 58. A hall sensor 60 is positioned between the two parts of the magnet 58 and fixed in position relative to any rotational movement of the rotational sensor 22.
摘要:
A vehicle compass system including a magnetic field sensor from which the earth's magnetic field can be detected in two channels of measurement. The sensor is coupled to a processing circuit which samples the sensor data and determines the maximum and minimum signal levels in each channel of measurement during movement of the vehicle through a 360.degree. path of travel. Based on the spans between the maximum and minimum signal levels, adjustment signals are generated for adjusting the resolution of the compass system and the maximum and minimum signal levels of subsequent sensor data so that the system's sensitivity resolution may be adjusted and accurate heading information can be calculated and displayed regardless of the strength of the earth's magnetic field.
摘要:
A vehicle compass system having a magnetic field sensor coupled to a processing circuit which samples the sensor data and implements a calibration routine that generates compensation signals to compensate the sensor for the effects of vehicular magnetism so that accurate heading information can be displayed on a display coupled to the processing circuit. If the signal levels detected are outside of a variable threshold, then the calibration routine is run. Also provided is a circuit for receiving vehicle position information in response to which the processing circuit adjusts the signals supplied to the display in order to account for magnetic variations between the true north and magnetic north.
摘要:
Methods, techniques, and constructions are provided for use to apply an evacuation valve arrangement on an air cleaner assembly that is configured for pulse jet operation. An example evacuation valve arrangement is provided which comprises a valve member in the form of a sleeve that extends completely around a sidewall portion of an air cleaner housing of a pulse jet air cleaner. Examples are depicted in which the sidewall portion can comprise: a portion of a housing sidewall section that surrounds an installed filter cartridge, in use; a portion of an access cover; or, a drop tube secured to a portion of the housing, for example either on an access cover or on another portion of a housing. Specific features and alternatives are described. Also, methods of assembly and operation are described.
摘要:
The compass system of the present invention utilizes an improved calibration routine in which a processing circuit of the compass recalibrates the compass each time three data points are obtained from a magnetic field sensor that meet predetermined criteria. One such criterion is that the three data points define corners of a triangle that is substantially non-obtuse. When three data points have been obtained that define a triangle meeting this criterion, the processing circuit calculates a center point for a circle upon which all three data points lie by solving the equation x2+y2+Ax+By+C=0 for A, B, and C, using the coordinate values (x,y) for the three data points and defining the center point as (−A/2, −B/2).
摘要:
A system for identifying the position of a tire on a vehicle based on wireless messages received from the tire includes a receiver circuit, a signal strength circuit, a memory, and a processing circuit. The receiver circuit is configured to receive the wireless messages. The signal strength circuit is configured to determine the signal strengths of the wireless messages. The memory is configured to store a predetermined frequency distribution. The processing circuit is configured to provide a frequency distribution of the wireless messages based on the signal strengths and to compare the frequency distribution to the predetermined frequency distribution to determine the position of the tire on the vehicle.
摘要:
An electronic compass system of the present invention includes a sensor for detecting the earth's magnetic field and for providing electrical signals representing the direction of the vehicle, a heading indicator for indicating vehicle headings in response to received vehicle heading signals, and a processor coupled to the sensor for receiving the electrical signals and coupled to the heading indicator for supplying the vehicle heading signals to the heading indicator. The processor preferably includes a first compass controller for calculating vehicle headings in response to the received electrical signals using precalibration data to compensate for expected vehicular magnetism, a second compass controller for calculating vehicle headings in response to the received electrical signals using an automatic calibration routine to compensate for actual vehicular magnetism, and a control transferring mechanism for initially selecting the vehicle headings calculated by the first compass controller to be represented by the vehicle heading signal supplied to the heading indicator, and for selecting the vehicle headings calculated by the second compass controller after the automatic calibration routine has acquired sufficient data from the magnetic field sensor to calibrate the compass system. The heading indicator may include a display and/or an audio messaging device for generating audible vehicle heading messages. If such an audible messaging device is employed, the device may also be used to record and playback dictated memos.