Patents Represented by Law Firm Laff, Whitesel & Rockman
  • Patent number: 4287558
    Abstract: A system for processing data received in the form of sample pulses has a memory with first and second major memory areas. A buffer register stores data temporarily to enable an interface between the timing of the system and of a sampled analog signal. A central processor processes data stored in one major memory area while data stored in the other major memory area is being transferred between the memory and the buffer register. The data transfer occurs during time periods while the central processor does not have access to the memory. One data item is outputted for each sample pulse received. This way, the cycle time of the sample pulses may be much greater than the cycle time of the central processor.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: September 1, 1981
    Assignee: Nippon Electric Co., Ltd.
    Inventor: Takao Nishitani
  • Patent number: 4281333
    Abstract: An ink-jet printer uses droplets of conductive ink to print on a recording medium. The ink is in a chamber having a nozzle and a piezoelectric member attached to one wall of the chamber. The droplets are driven out of the nozzle in response to a driving pulse which is applied to the piezoelectric member. The size of the droplets is determined by the energy content of the driving pulse. The charges formed upon the droplets leaving the nozzle are generated responsive to the driving pulse and have a level which depends upon the driving pulse.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: July 28, 1981
    Assignee: Nippon Electric Co., Ltd.
    Inventors: Mitsuo Tsuzuki, Michihisa Suga
  • Patent number: 4280079
    Abstract: Upon applying a discharge voltage between opposed electrodes of a plasma display panel, all electrodes other than a selected electrode are clamped at a fixed potential. To that end, a toggled voltage is supplied from a toggled voltage source and applied via a first switching circuit, to one ends of a plurality of second switching circuits in common. The other ends of the second switching circuits are respectively connected to panel electrodes and to one end of third switching circuits. The other ends of the third switching circuits are respectively held at a fixed potential. The second and third switching circuits may be driven synchronously in such manner that when one is ON, the other is OFF and vice versa when a toggled voltage is not brought to a panel electrode, that panel electrode is clamped at a fixed potential. Such a first switching circuit and a group of second switching circuits are combined into one set.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: July 21, 1981
    Assignee: Nippon Electric Co., Ltd.
    Inventor: Kazunori Nishida
  • Patent number: 4271504
    Abstract: Frequency modulators for use in microwave link transmission systems include acoustic surface wave (ASW) oscillators. Each frequency modulator comprises two voltage control quadripole ASW oscillators. Control inputs of the two ASW oscillators receive modulation signal in opposite phase. Outputs of ASW oscillators are mixed in a mixer for delivering an IF signal. Thus frequency deviation is larger than in a conventional arrangement. Moreover, surface wave oscillators make it possible to directly insert a service channel signal in a microwave link repeater, without demodulation and modulation operations.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: June 2, 1981
    Inventors: Pierre C. Brossard, Jeannine L. G. Henaff
  • Patent number: 4270081
    Abstract: A constant-current circuit is especially well-suited for construction as a semiconductor integrated circuit, and it is stable over a wide range of variations in power potential. The constant-current circuit produces first to third biasing potentials. A first current source produces a first current responsive to the first bias potential. A second current source produces a second current responsive to the second bias potential, and a third current source produces a third current responsive to the third bias potential. A constant current output is obtained by subtracting the second current from the sum of the first and third currents.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: May 26, 1981
    Assignee: Nippon Electric Co., Ltd.
    Inventor: Kyuichi Hareyama
  • Patent number: 4267224
    Abstract: A plastic material which is suitable for simulating engraving on metal has a substrate which is not deformed by the heat or pressure of a hot stamping process. A sheet or layer of thermoplastic material of limited thickness is laminated to the upper surface of the substrate. The opposite side of the thermoplastic material is covered by a containment film. Thus, within the limits of manufacturing tolerances, the layer of thermoplastic material may be subjected to any amount of pressure to produce a debossment which is no deeper than the depth of the limited thickness when a hot stamping die bottoms on the non-deformable substrate. Therefore, there is a much more predictable end product.
    Type: Grant
    Filed: July 18, 1979
    Date of Patent: May 12, 1981
    Assignee: Contemporary, Inc.
    Inventor: James C. Kanzelberger
  • Patent number: 4266825
    Abstract: A mounting device of the described type may be viewed as being somewhat similar to a camera tripod, for example. Four extendible legs are adapted to be secured to the arms of a wheelchair. Two of the legs terminate in flat pad mounts which may be attached to and rest upon the upper broad and flat surfaces of wheelchair arms. The other two legs include interchangeable ends, some of which may also include flat pad mounts to be attached to the flat surfaces of such arms, and others of which may include spring-clips that may be snapped over or clamped around a bar with a circular cross section. The flat pads are preferably held in place by straps using "Velcro" hook and loop fasteners. The spring-clips are primarily devices which may be pushed into place around a circumference of a circular pipe. Optionally, a wing nut may supplement the circular clamps to more securely hold them in place.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: May 12, 1981
    Inventor: Robert Le Donne
  • Patent number: 4262633
    Abstract: An integrated waste reclamation and processing system converts biodegradable liquid and solid waste into poultry products (or the like) and humus-like substances. The system uses earthworms and poultry in a manner in which biodegradable waste is first composted and then used as a substrate for newly hatched worms. The worms grow in the waste for about eighty days and then are harvested and fed to chickens or laying hens, in combination with other food. The waste left behind by the worms has humus-like properties which can be used as a soil conditioner on eroded, strip-mined, or desert land. This conversion system, which is preferably contained in a closed building and maintained operational throughout the year, it is applicable to the needs of small and large waste-producing institutions and facilitates the reclamation of biodegradable waste in a manner which is environmentally acceptable and economically feasible. The structures and machinery used in the system are also shown and described.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: April 21, 1981
    Inventor: Leandro Taboga
  • Patent number: 4262311
    Abstract: According to the present invention, there is provided an automatic carriage-returning device for a facsimile apparatus comprising a rotary drum for performing the main scanning, a carriage for performing the sub-scanning along the axis of the drum, a belt for moving the carriage in the sub-scanning direction, a coupling means for connecting the belt with the carriage, and spring means operative to return the carriage toward the initial position, said carriage being returned to the initial position by means of repeating actuation and release of the coupling means to the belt.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: April 14, 1981
    Assignee: Nippon Electric Co., Ltd.
    Inventors: Harunori Tachikawa, Sadayoshi Kimura
  • Patent number: 4261292
    Abstract: According to a characteristic feature of the present invention, the conve moves in an alternating fashion, and the milking operation takes place over two outward and two inward journeys. During the first outward journey, the sheep join the conveyor and receive their teat cups as they pass in front of an operator; during the first inward journey, the milking continues; during the second outward journey, the teat cups are removed as the sheep pass in front of the operator and are freed from the retaining apparatus to leave the parlor; and during the second inward journey, the conveyor returns empty to the initial position.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: April 14, 1981
    Assignee: Etablissement Public dit "Institut National de la Recherche Agronomique"
    Inventor: Jean Le Du
  • Patent number: 4261799
    Abstract: An electrolytic process generates erasable pictures on a solid electrolyte substrate to electrically record data without consumption of energy. The substrate is electrically erasable at will, and then is capable to record data again, and usable as well in telecopy receiver apparatus as display screen. The recording may be made by using an unwearable electrode made of a metal and using a low voltage power supply, for instance under 10V, and a small current. The substrate is substantially unsensitive to ambient light. An electrolytic process locally generates an optical absorption at the surface of an electric conductive layer connected to an anode. The layer has an optically diffusing powder and a metal compound, the amount of which is relatively small. The optical absorption is produced at the contact point between a supplied cathode and the surface by means of a reduction of the metal compound.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: April 14, 1981
    Inventors: Paul Anizan, Yvon Bessonnat, Marie-Therese Riou
  • Patent number: 4257434
    Abstract: A heated hair curling brush having a single tubular heating surface and a plurality of comb rings. The comb rings are placed over the heating element. Locking projections on the inner periphery of the comb rings fit into apertures in the surface of the heating surface which hold the comb rings in place. When the brush is assembled there are no interruptions in the exposed portions of the heating surface, and the user's hair may contact the heating surface around the entire circumference of the exposed portions of the heating surface without snagging.
    Type: Grant
    Filed: July 10, 1979
    Date of Patent: March 24, 1981
    Inventor: John Wahl
  • Patent number: 4256927
    Abstract: According to a feature of this invention, there is provided a space-division and control system for a network operating with space-division switching of information modulating optical carrier frequencies, wherein the switches are arranged between a plurality of inlets and a plurality of outlets and are light deflection hologram elements that can store a plurality of holographic optical arrays, each switch being associated to an inlet from which it receives an impinging light wave and in each switch each holographic optical array deflecting the impinging light wave along a direction of an order different from the O-order direction toward an outlet selected among the plurality of outlets, wherein in the O-order direction of each switch there is a photodetector whose output signals reflect the lit or unlit condition of the associated inlet and are transmitted to the switching control unit of the space-division and control system.
    Type: Grant
    Filed: April 18, 1979
    Date of Patent: March 17, 1981
    Inventors: Michel E. Treheux, Rene J. Lacroix
  • Patent number: 4255210
    Abstract: A read only-memory (ROM) is manufactured by a process which produces memories having customized codes from partially completed semiconductor chips. The chips are manufactured to a step where a matrix of apertures or windows are formed in an oxide layer at every cross point of every potential code. Then, a silicon dioxide film is formed over the entire surface of the chip including the window apertures. At this stage, the chip is stored as a general purpose stock item. When an order is received to prepare a ROM chip with customized codes, a mask is formed to etch and reopen the apertures or windows in the dioxide film at the encoded cross points. Then, suitable contact material is deposited over the surface of the chip, thereby completing a contact at each of the reopened apertures or windows. As a result, the normal lead time required for a manufacturer to make a customized ROM is reduced from, say, 4.5 to 6 days to a period of approximately 1.5 to 2 days.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: March 10, 1981
    Assignee: Nippon Electric Co., Ltd.
    Inventors: Yasushi Okuyama, Tsuyoshi Suzuki
  • Patent number: 4253341
    Abstract: A water meter eliminates the usual conversion gear trains by using a permanent magnet which rotates in proportion to the volume of water to be measured. A magnetic field sensor, comprising a ferromagnetic magnetoresistor, produces a sensor signal which varies as a function of the rotation of the magnet. A wave shaper forms the sensor signal into a sequence of pulses which drive a totalizer for producing a signal indicative of the volume of the water used. The output of the totalizer is supplied to an indicator device which displays the total amount of water passing through the meter, in terms of a predetermined unit of measure. Preferably, the sensor comprises at least two magnetoresistors for producing two sensor signals with a phase difference therebetween. The wave shaper then produces two pulse sequences for identifying a normal and an inverse flow of water, respectively. These two sequences cause the totalizer to count up or down, respectively.
    Type: Grant
    Filed: April 24, 1979
    Date of Patent: March 3, 1981
    Assignee: Nippon Electric Co., Ltd.
    Inventors: Mamoru Ikeda, Noboru Yamazaki, Jun Fukui, Kazuhiko Shirai, Takesh Yano
  • Patent number: 4251836
    Abstract: A system for broadcasting data makes it possible to broadcast facsimile d toward a plurality of telecopying apparatuses, using an asynchronous broadcasting network.To each telecopying device there is joined a reception juncture device which develops a going time base or clocking to synchronize the telecopying device. At the emitting station, an emission juncture device simulates the operation of a reception juncture device to govern the transmission of the signal by the network.
    Type: Grant
    Filed: June 1, 1978
    Date of Patent: February 17, 1981
    Assignee: Etablissement Public de Diffusion dit "Telediffusion de France"
    Inventor: Jean Moreau
  • Patent number: 4249684
    Abstract: The invention provides an easily transportable, general purpose box which may be carried about by hand and then anchored to rails and locked in place. Once the lid is locked on the box, no one without a key can move the box from the anchor rails. The invention is primarily intended as a portable trunk for mounting on a truck; however, it may be used anytime that a box is to be mounted on a chassis, such as a toolbox mounted on a wheeled dolly, a toolroom shelf, or the like, for example.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: February 10, 1981
    Inventors: Kenneth Miller, Le Roy Dombeck
  • Patent number: 4250354
    Abstract: Meters accumulate peg count signals occurring in an observed telephone system. These signals are subtotaled on a daily basis, and totaled on a weekly or similar basis, for the seven-day period (for example) immediately following an initial start or reset. The outputs of these meters are connected to a pollable device which may be seized via the telephone switching system being observed, whenever central testing or similar equipment dials the directory number of such a pollable device. This way, the peg count information may be automatically processed by a central computer, without necessarily requiring the intervention of a human operator.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: February 10, 1981
    Inventor: Ernest C. Karras
  • Patent number: D260227
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: August 18, 1981
    Assignee: Amco Corporation
    Inventor: Wade Bentson
  • Patent number: D260328
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: August 25, 1981
    Assignee: Sunstar, Inc.
    Inventors: Gerald C. Neely, Kiyoshi Maekawa