公开(公告)号：CA1185353A

公开(公告)日：1985-04-09

申请号：CA415419

申请日：1982-11-12

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W

IPC: G01F9/00 ,  G01F17/00 ,  G01F22/02 ,  G01F23/00 ,  G01F23/296 ,  G01F23/28

Abstract: The volume of gases in a container or the volume of liquid in the container is determined by creating cyclic pressure waves in the gases and detecting the waves by a second transducer. The signals produced by the second transducer are a function of the volume of gas in the container, and the volume of any liquid can be obtained by simple calculation. The signals can also provide detection of an open container and, when coupled to signals relating to the velocity of a vehicle, can provide other data such as a miles-per-gallon reading.

公开(公告)号：CA1130388A

公开(公告)日：1982-08-24

申请号：CA312254

申请日：1978-09-28

Applicant: MOTOROLA INC

Inventor： HILBERT FRANCIS H ,  PARKER NORMAN W

IPC: H04H1/00 ,  H04H20/49 ,  H04H5/00

Abstract: AP-77870 AM STEREO RECEIVER WITH IMPROVED CORRECTION SIGNALS An AM receiver for receiving a compatible stereo signal and requiring a dynamic correction factor prevents the introduction of a false phase reference signal by limiting and filtering the signal going into the oscillator of the PLL which provides the correction reference signal.

公开(公告)号：CA1120106A

公开(公告)日：1982-03-16

申请号：CA368526

申请日：1981-01-14

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W ,  HILBERT FRANCIS H

IPC: H04H20/88 ,  H04H5/00

Abstract: AP-76819 A COMPATIBLE AM STEREO BROADCAST SYSTEM A compatible AM stereo broadcast system has a pair of carriers in quadrature are separately modulated with stereo information. The resulting signal is multiplied by the cosine of an angle 0, the angle between the vector sum of the two carriers and a line that bisects the angle between the carriers in quadrature. The signal envelope contains the sum of the information on the two channels, thus providing compatible monophonic reception. In a stereo receiver the two carriers in quadrature can be restored by dividing the signal by the cosine of the angle 0. The original modulation can be obtained from each channel by product detection.

公开(公告)号：CA878778A

公开(公告)日：1971-08-17

申请号：CA878778D

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W

公开(公告)号：CA595325A

公开(公告)日：1960-03-29

申请号：CA595325D

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W

公开(公告)号：CA537815A

公开(公告)日：1957-03-05

申请号：CA537815D

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W

公开(公告)号：ES2080340T3

公开(公告)日：1996-02-01

申请号：ES91918578

申请日：1991-09-13

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W ,  KANE ROBERT C

IPC: H01J1/304 ,  H01J3/02

Abstract: A cold-cathode field emission device controls electron emission by using a current source coupled to the emitter. The open circuit voltage of the current source is less than the voltage at which the FED would emit electrons. Application of an accelerating potential on the gate enables electron emission. Electron emission from the FED is governed by the current source.

公开(公告)号：CA1211159A

公开(公告)日：1986-09-09

申请号：CA478788

申请日：1985-04-10

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W

IPC: G06F7/548 ,  G06G7/22 ,  H03C3/02 ,  H04B1/16

Abstract: A TRANSFORM MODULATION RECEIVER The receiver receives a transmitted signal of which the modulation is one trigonometric transform function of a desired information signal. The desired signal is recovered by first deriving the Hilbert transform of the sine transform, and multiplying it by the signum of the derivative of the original audio signal to obtain the cosine transform. The sine and cosine transforms are then decoded to obtain the original audio signal.

公开(公告)号：CA1189909A

公开(公告)日：1985-07-02

申请号：CA380464

申请日：1981-06-23

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W

IPC: H03C3/00 ,  H03D1/24 ,  H03D3/00 ,  H03K5/22 ,  H04B1/52 ,  H04B1/68 ,  H04B14/00

Abstract: A single carrier is amplitude-modulated by a signal which is a transform (as the sine function) of the audio signal, and one set of sidebands is removed. In a receiver, the signal can be recovered by first deriving the Hilbert transform of the sine transform, and multiplying it by the signum of the derivative of the original audio signal to obtain the cosine transform. The sine and cosine transforms are then decoded to obtain the original audio signal.

公开(公告)号：CA1129966A

公开(公告)日：1982-08-17

申请号：CA319300

申请日：1979-01-09

Applicant: MOTOROLA INC

Inventor： PARKER NORMAN W ,  HILBERT FRANCIS H

IPC: H04H1/00 ,  H04H20/49 ,  H04H5/00

Abstract: AM STEREOPHONIC RECEIVER An AM receiver for utilizing a broadcast signal of the form (1 + L + R)cos(.omega.ct + 0) separates the L and R signals by utilizing phase detection and matrixing. Distortion is either eliminated with non-linear amplification or reduced with partial matrixing.