Famous Patents
British merchant Peter Durand invented the tin can in 1810.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5636076 | Automatic recording current controller of magnetic recorder After an audio signal at a given level is recorded, the recording level is changed and a video signal is recorded. The audio and video signals are reproduced. A first recording level at which the reproduced video signal becomes the maximum level, a second... | 06/03/1997 |
| 5594168 | Vibration control apparatus having oscillation frequency regulation A vibration control apparatus that can impart self-induced vibration by stabilizing the vibrator at a frequency in near agreement with its mechanical resonance frequency vibration fs is provided. A vibrator has a pair of piezo-electric elements... | 01/14/1997 |
| 5554904 | Vibration control apparatus having automatic gain control A vibration control apparatus that can impart stabilized self-induced vibration without amplitude changes even under changes in ambient temperature is disclosed. When the apparatus is used with a vibrating gyroscope, detection accuracy is increased withou... | 09/10/1996 |
| 5551292 | Angular velocity detection circuit for vibratory gyroscopes An angular velocity detection circuit is capable of detecting angular velocity at good efficiency, while also being capable of suppressing the formation of offset to very low amounts even when differences arise in the equivalent resistances of a piezo-ele... | 09/03/1996 |
| 5460043 | Vibratory gyroscope A vibrating gyroscope comprises a vibrating element which is polygonal, e.g., rectangular, in cross-section, at least two piezoelectric elements adhered to at least one side of the vibrating element, and a variable resistor. The variable resistor includes... | 10/24/1995 |
| 5446539 | Magnetic recording and reproducing device with selective line noise canceling A magnetic recording/reproducing apparatus, which includes: a reproduced level detector for detecting the level of a reproduced signal and a memory for storing the reproduced level detected by the detector; and when recording a video signal, the signal is... | 08/29/1995 |
| 5416641 | Magnetic recording/reproducing apparatus including a switch for selectively supplying a reference signal to the recording unit A magnetic recording/reproducing apparatus, which includes: a reproduced level detector for detecting the level of a reproduced signal and a memory for storing the reproduced level detected by the detector; and when recording a video signal, the signal is... | 05/16/1995 |
| 5400149 | Magnetic recording apparatus having improved detail emphasis circuit A magnetic recording/reproducing apparatus, which includes: a reproduced level detector for detecting the level of a reproduced signal and a memory for storing the reproduced level detected by the detector; and when recording a video signal, the signal is... | 03/21/1995 |
| 5386726 | Vibratory gyroscope A vibratory gyroscope comprises, with respect to an XYZ coordinate system, a tuning fork having two arm members extending from a base member in the direction of the Z-axis, a support member extending from the base member in the direction of the Z-axis, an... | 02/07/1995 |
| 5270607 | Vibration control apparatus A vibration control apparatus comprises a vibration member having a surface with a resonance point. A piezoelectric element is adhered to the surface of the vibration member. A drive apparatus is connected to the piezoelectric element via an impedance ele... | 12/14/1993 |
| 5257109 | Magnetic recording and reproducing apparatus A magnetic recording/reproducing apparatus, which includes: a reproduced level detector for detecting the level of a reproduced signal and a memory for storing the reproduced level detected by the detector; and when recording a video signal, the signal is... | 10/26/1993 |
| 5256929 | Vibrator support structure A vibrator support structure for a vibrator having a vibrating body comprises a support stand, a first damper material disposed on top of the support stand, and a first substrate disposed on top of the first damper material. In addition, the vibrator supp... | 10/26/1993 |
| 5254898 | Vibrator A vibrator is disclosed having a vibrating body with a polygonal lateral cross-section. Two piezoelectric elements are disposed on nonparallel side surfaces of the vibrating body. A support structure is provided which supports the vibrating body at two su... | 10/19/1993 |
| 5249064 | Noise canceller for use in a magnetic reproducing apparatus A magnetic recording/reproducing apparatus, which includes: a reproduced level detector for detecting the level of a reproduced signal and a memory for storing the reproduced level detected by the detector; and when recording a video signal, the signal is... | 09/28/1993 |
| 5111346 | FM audio record reproducing apparatus having circuitry for preventing discontinuities during channel switching or switching of read heads A reproducing apparatus which is provided with: frequency converting means for performing frequency conversion of the FM regenerative signals respectively from the read heads, on the basis of frequency conversion signals each having a frequency different ... | 05/05/1992 |
| 4961017 | Stator for use in a brushless motor A stator having a stator yoke, a first and second printed substrates, a plurality of drive coils and hall elements mounted on the first substrate, and a group of drive circuits mounted on the second substrate, wherein an end of the drive coil which is to ... | 10/02/1990 |
| 4829463 | Programmed time-changing coefficient digital filter A time-changing coefficient digital filter having a data RAM for storing input data, a purality of N data registers at the output of the data RAM forming a delay element, a coefficient RAM storing coefficient values, coefficient registers temporarily stor... | 05/09/1989 |
| 4696306 | Electrocardiogram playback system and method A system and method for minimizing time-base fluctuations in playing back an electrocardiogram recorded on one track of a multi-track magnetic tape with reference clock signals recorded on another track. A sampling circuit samples the recorded electrocard... | 09/29/1987 |
