Body-mounted selective control device
Granted: November 20, 2007
Patent Number:
7298360
A small, lightweight housing includes a plurality of light signal transmitters and can be attached to the body such as the wrist of an operator such that another part of the body or another object can be brought into the beam of a particular light transmitter to reflect or scatter the light signal from one of the light signal transmitters and coded such that a particular light transmitter can be distinguished. A receptor associated with the housing receives the reflected or scattered or…
Brake-equipped retracting mechanism for retractable member
Granted: November 13, 2007
Patent Number:
7293632
In a brake-equipped retracting mechanism, rotational force of a motor is used to open a liquid crystal display device from a retracted position to an open position, a power spring is wound up in conjunction with this opening operation, and elastic restoring force thereof is used to return the liquid crystal display device from the open position to the retracted position. A rope for developing a greater or smaller tensile force in conjunction with opening and closing of the liquid crystal…
Wave gear device
Granted: July 31, 2007
Patent Number:
7249536
A diaphragm of a cup-shaped flexible external gear of a cup-shaped wave gear device having a high reduction ratio of 100 or higher is given a thickness t in a position of a radius r of the diaphragm whereby the thickness t is a value that satisfies the expression A/r2 when A is a constant. The constant A is preferably a value that satisfies the expression 0.0014 D3<A<0.0026 D3, where D is a pitch diameter of the flexible external gear, and the range of the radius r whereby the…
High dynamic range optical receiver
Granted: July 10, 2007
Patent Number:
7242871
An optical receiver, for use for instance in an analog optical communications system such as a return path in cable television, operates over a wide range of input power to its photodetector. This is accomplished by providing in the optical receiver a series of RF amplifier stages where at least one of the stages includes a fixed attenuator and a parallel amplifier with switches suitably connected so that, at any one time, only one of the fixed attenuator or the amplifier is in the…
Servo driver and encoder signal processing IC
Granted: May 29, 2007
Patent Number:
7224139
A servo driver (3) includes: an input section (11) for input-specifying the type of an encoder (7) at the side of an actuator (2); a control section (13) for generating a control signal (12) according to the type input; and an encoder signal processing IC (20) for switching the input port to which reception data (7S) is input form the encoder (7) according to the control signal (12). The encoder signal processing IC (20) is compatible with processing of an output of either a line-saving…
Actuator having wave gear reduction drive
Granted: May 8, 2007
Patent Number:
7213487
An actuator has a motor and a wave gear reduction drive in which a wave generator is coaxially connected to an output shaft protruding forward from a front surface thereof. A shaft portion of the output shaft coaxially extends through inside a cylindrical trunk in the flexible internal gear of the wave gear reduction drive, and a magnetic encoder for detecting the rotation of the output shaft is mounted on the shaft portion. Since the dead space inside the cylindrical trunk is used as…
Motor encoder
Granted: March 27, 2007
Patent Number:
7196442
An encoder mounted on a motor axle of an AC servomotor has a single bipolarly magnetized rotational disk, magnetic sensors for outputting X- and Y-signals that differ in phase by 90° in association with the rotation thereof, and a signal processing unit. The signal processing unit computes at predetermined cycles a rotor angle ?a of a motor rotor on the basis of the X- and Y-phase signals, generates three-phase magnetic pole signals U, V, and W that differ in phase by 120° on the basis…
Tapecast electro-conductive cermets for high temperature resistive heating systems
Granted: March 13, 2007
Patent Number:
7189342
This invention relates to novel chemical compositions and manufacturing methods for producing electro-conductive, metal-ceramic materials having improved structural stability to operate at high temperatures in oxidizing atmospheres.
Wave gear device having internal gear integrally formed with inner ring of bearing
Granted: January 23, 2007
Patent Number:
7165473
A wave gear device has a rigid internal gear, a flexible external gear, a wave generator, and a cross roller bearing for supporting the gears in a relatively rotatable manner. A toroidal composite member that functions as the rigid internal gear and an inner ring of the cross roller bearing has an inner ring-forming member that functions as the inner ring, and an internal teeth-forming member that functions as the rigid internal gear, and the internal teeth-forming member composed of a…
Lightweight bearing and wave gear drive
Granted: October 31, 2006
Patent Number:
7128469
A lightweight bearing and wave gear drive are provided. An outer or inner bearing ring of the bearing has fixing holes to enable the ring to be attached to another member. The parts of the bearing on which raceway surfaces are formed are made of an iron-based material, while the main bearing ring member is formed of a lightweight material that is lighter than the iron-based material. Surface portions that constitute fixing bolt seats are plated to increase the strength of such portions.…
Wave gear drive with wide mesh three-dimensional tooth profile
Granted: October 10, 2006
Patent Number:
7117759
A wave gear drive in which wide-area meshing of the rigid internal gear and flexible external gear is achieved, reducing stresses on the bottom rim of the gear teeth and in the vicinity of the major axis of the inner ring surfaces of the wave generator, thereby improving the load capabilities of the wave gear drive.
Telephone and method for converting sound to image and displaying on screen thereof
Granted: August 29, 2006
Patent Number:
7099705
A telephone and a method for converting sound to image and displaying on a screen thereof are disclosed. Receiver receives a call signal. Storage section stores call sound information. Call sound output section outputs a call sound. Color display device displays a color image. Controller reads out the call sound information when the receiver receives the call signal. Controller generates a call sound through call sound output section in response to read call sound information. Controller…
Frequency stabilizer circuit for window covering control chip clock
Granted: August 15, 2006
Patent Number:
7091682
A logic chip that controls the motor of a motorized window covering or other object includes a clock. A frequency stabilizer circuit is provided to receive input voltage and to output to the clock a current that is a function of the voltage and temperature over a range of input voltage values and over a range of ambient temperature values so that the frequency output by the oscillator is constant.
Electrical filter/protector, and methods of constructing and utilizing same
Granted: August 15, 2006
Patent Number:
7092229
A device for an electrical power system having a nonlinear load. The circuit is connected in series with the nonlinear load and is tuned to the third harmonic of the power source frequency. The circuit substantially eliminates the harmonic currents and neutral currents located in the power system, and improves the power factor of the nonlinear load by optimizing the current drawn by the nonlinear load.
Finger unit for robot hand
Granted: July 18, 2006
Patent Number:
7077446
An articulated finger unit has a two-jointed structure comprising a joint portion on a finger base side, a finger base portion, a joint portion on a fingertip side, and a fingertip portion; the joint portion on the finger base side has a drive-side bevel gear fixed to a rotational output shaft of an actuator, a driven-side bevel gear coaxially fixed to a joint portion that is perpendicular to the rotational output shaft, and a connecting member wherein an annular boss is fixed to the…
Palm mechanism for robot hand
Granted: June 13, 2006
Patent Number:
7059645
A palm mechanism for a high-speed robot hand has a fixed-side articulated finger unit that projects forward from an upper side of a vertically positioned palm plate, and moveable-side articulated finger units disposed on both sides thereof. The left and right articulated finger units are capable of turning along two short sides of the rectangular palm plate from upper end positions on the palm mechanism. The articulated finger units are capable of bending up and down about joint portions…
Planetary gear drive
Granted: June 13, 2006
Patent Number:
7059996
A planetary gear drive includes a thin, elastically resilient internal gear arranged within an annular housing, in which there is also a carrier that is rotatably supported by a pair of tapered roller bearings. A sun gear located concentrically within a cylindrical portion of the carrier is arranged so that the sun gear is capable of floating movement perpendicular to the drive axis. Any uneven meshing caused by error in the assembly or manufacture of the gears is automatically cancelled…
Component of an harmonic drive actuator
Granted: June 6, 2006
Patent Number:
D522548
Component of a flat harmonic drive actuator
Granted: May 30, 2006
Patent Number:
D522029
Projection encoder with moving side gratings and fixed side gratings
Granted: May 30, 2006
Patent Number:
7053361
A projection linear encoder has an SOQ substrate formed with transmission gratings and grid-like photodiode groups, and a reflecting grating plate with reflecting gratings that are formed facing thereto. A light-blocking film composed of a metal thin film or the like is formed on a surface of a glass substrate of the SOQ substrate, and the transmission gratings are formed by patterning the light-blocking film. The photodiodes are integrally formed by epitaxial growth on the silicon layer…
