Patents Assigned to Casio Computer
  • IC card system compatible with bank account system
    Patent number: 4839504
    Abstract: In an IC card system, a first file corresponding to a normal bank account and a second file corresponding to an IC card account are provided for each IC cardholder. A card terminal for receiving an IC card communicates in an on-line manner with a host computer installed in a bank. A deposit amount is transferred between the first and second files for a transaction using the IC card. The IC card stores an account list for the transfer of a remittance to an account of a third party, so that a cash transfer from the first or second file to the account of the third party can be performed. The IC card functions both as a debit card and a credit card. When either of these functions is selected, an off-line transaction involving use of the IC card can be performed.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: June 13, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Harumi Nakano
  • IC card identification system including pin-check time means
    Patent number: 4839506
    Abstract: An IC (integrated circuit) card identification system includes a comparator for comparing a first identification number entered by a cardholder with a second identification number, a storage memory for storing at least the second identification number, a timer for measuring a time lapse during a card-identifying operation, and a central controller for controlling the timer to set a first processing time period to be substantially equal to a second processing time period. During the first processing time period, the comparator determines that the first identification number is coincident with the second identification number since the first identification number has been entered. During the second processing time period, the comparator determines that the first identification number is incoincident with the second identification number since the first identification number has been entered.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: June 13, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventors: Satoshi Homma, Tohru Watanabe
  • Drive method for a dual-frequency, dielectric anisotropy liquid crystal optical device
    Patent number: 4836654
    Abstract: An ON electric field for turning on (allowing light transmission) a liquid crystal optical device and an OFF electric field for turning off (shielding light) the liquid crystal optical device are selectively applied to a liquid crystal material of the liquid crystal optical device. The ON electric field is applied so as to obliquely align liquid crystal molecules with respect to substrates constituting the liquid crystal optical device, thereby obtaining an ON state. The ON electric field has an electric field for driving the liquid crystal molecules and a non-electric field for generating a state wherein no electric field is applied to the liquid crystal molecules. The OFF electric field has an electric field for homeotropically aligning the liquid crystal molecules with respect to the substrates.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: June 6, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventors: Koh Fujimura, Masakatsu Higa, Hisashi Aoki
  • Oxygen-containing ferromagnetic amorphous alloy and method of preparing the same
    Patent number: 4837094
    Abstract: An oxygen-containing ferromagnetic amorphous alloy having the formulaM.sub.x G.sub.y O.sub.zwherein M is one or more transition elements of Fe, Co and Ni; or a combination of said transition element or elements and one or more elements selected from the group consisting of V, Cr, Mn, Nb, Mo, Hf, Ta, W, Pt, Sm, Gd, Tb, Dy and Ho; G is one or more elements selected from the group consisting of B, Si, Ge, As, Sb, Ti, Sn, Al and Zr; and x, y and z are the fractional atomic percentages of M, G and O and y+y+z=100 and this alloy in combination with a substrate.
    Type: Grant
    Filed: February 4, 1987
    Date of Patent: June 6, 1989
    Assignees: Research Development Corporation of Japan, Casio Computer Co., Ltd.
    Inventor: Toshio Kudo
  • Electronic word processing with sequential character attribute compounding
    Patent number: 4836712
    Abstract: Electronic word processing is carried out with a keyboard including character keys and attribute keys. Attribute codes input by the attribute keys are stored in an attribute code memory in accordance with the sequence of attribute key operation. An attribute pattern corresponding to an attribute code read out from the memory is read out from attribute pattern memories, and is printed by a printing section after compounding by an instruction from an attribute compounding designation section.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: June 6, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Hiroki Atsumi
  • Compact measuring apparatus capable of measuring two different data with a single pressure sensor
    Patent number: 4835716
    Abstract: Only one pressure sensor is employed in a compact measuring apparatus for measuring both depths of water and altitude. A pressure-data generator generates pressure data corresponding to a pressure applied to the single pressure sensor. A water-depth data converter converts this pressure data into water-depth data. An altitude-data converter converts this pressure data into altitude data. The water-depth data and the altitude data are visually displayed on the compact measuring apparatus.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: May 30, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventors: Nobuo Tamaki, Masayoshi Okuyama, Yasushi Ida, Toru Yamada
  • Liquid crystal apparatus having pressure absorbing means
    Patent number: 4832460
    Abstract: The liquid crystal apparatus has a segment substrate and a common substrate. Segment electrodes are formed on the segment substrate, while common electrodes are formed on the common substrate. A liquid crystal composition is sealed between the segment and common substrates with a seal member. The segment and common electrodes, the liquid crystal composition and the seal member constitute an elongated shatter portion including light shutters arranged in two rows. Liquid crystal reservoir portions are formed between the substrates and coupled to the shutter portion. The liquid crystal reservoir portions are resilient and thus can be deformed to suppress a change in the pressure applied on the liquid crystal composition due to a change in the volume of the liquid crystal composition. As a result, the formation of bubbles in the shutter portion can be prevented.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: May 23, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventors: Koh Fujimura, Kenzo Endo, Kohei Saito
  • Digital audio tape record/play-back system for recording/playing back character data together with digital audio data
    Patent number: 4833549
    Abstract: In this invention, pack data of a character mode including a character code is generated by a sub-code processor. The pack data is continuously recorded on a magnetic tape for a plurality of frames by rotary heads. When the pack data of the character mode is played back by the rotary heads, a controller detects the character code included in this pack data and supplies the detected code to a display to display corresponding characters.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: May 23, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventors: Itsuro Yoshimoto, Kuniyoshi Otsuki
  • Electronic time measuring apparatus including past record display means
    Patent number: 4831605
    Abstract: An electronic stop watch measures an elapsed time, and stores each measured elapsed time together with measurement date data. The measurement date data is also read out and displayed when the stored elapsed time is read out and displayed, so as to represent when the readout and displayed elapsed time was measured.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: May 16, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Fusao Suga
  • Thin battery-containing structure
    Patent number: 4828944
    Abstract: The present invention relates to a thin battery-containing structure for an electronic apparatus which includes a lock pin provided on a flexible arm of a battery holder. The lock pin is guided to a predetermined position by a guide/lock groove in a case by pressing a battery holder inward for installing a battery in the battery container of the case. The lock pin is disengaged by the guide/lock groove when further inward force is applied. Upon removal of such force, the battery holder is pressed out of the battery container.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: May 9, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventors: Noboru Yabe, Yoshimata Yasui
  • Intelligent-type IC card containing IC circuit and battery
    Patent number: 4827111
    Abstract: An IC card and an IC card system using this card can be independently operated by a battery built in the IC card. The IC card and its system can detect power supplied from the card terminal and use a clock signal as an operating signal from the card terminal upon detection. Otherwise, a clock signal having a low frequency generated in a clock signal generating section in the card is used as an operating signal, thereby extremely reducing power consumption of the battery built into the card.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: May 2, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Akio Kondo
  • Technique for authenticating IC card and terminal
    Patent number: 4827113
    Abstract: An IC card is placed on a card terminal main body, and an internal IC of the IC card is electrically connected to an electrical circuit in a terminal through a connector. Input data entered by a card holder at a keyboard and data read out from the IC card are encrypted in accordance with a predetermined encryption algorithm and are compared with each other. Authenticity of the card terminal and the IC card is determined in accordance with the comparison result.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: May 2, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Kenji Rikuna
  • Liquid crystal projector
    Patent number: 4824210
    Abstract: A liquid crystal projector is disclosed, which comprises a light source, a TV type liquid crystal display panel and a projecting lens system. The liquid crystal display panel faces the screen and is inclined with respect to a line perpendicular to an optical axis connecting the center of the liquid crystal display panel and the center of a screen by the suitable visual field angle of the liquid crystal display panel.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: April 25, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Tatsuo Shimazaki
  • Image information recognition apparatus
    Patent number: 4823395
    Abstract: In an image information recognition apparatus image information read by an image reader is stored in an image memory. Since the read image information corresponds to the entire reading range of the reader, an edge of a specific region of the image signals is detected by an edge detector. Boundaries of the region are determined by a coordinate emulator in accordance with a detection signal from the edge detector. Image information within the region surrounded by the boundaries is read out from the image memory, and a bit mover rotates the image information to a normal position or trims it, as needed.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: April 18, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Masami Chikauchi
  • Electronic stringed instrument
    Patent number: 4817484
    Abstract: An electronic stringed instrument includes a mode selecting section for selectively setting a normal play mode and at least one other selection mode. When picking of a string under a pitch designation operation status is performed after the normal play mode is selected by the mode selecting section, generation of a musical tone with the designated pitch can be started. When picking of a string also under the pitch designation operation status is performed after another selection mode is selected by the mode selecting section, a desired musical tone parameter such as a timbre corresponding to the designated pitch or a rhythm pattern can be easily set. The content of the set musical tone parameter can be confirmed by a sound.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: April 4, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventors: Akio Iba, Shigeru Uchiyama
  • Waveform generating apparatus for driving liquid crystal device
    Patent number: 4819186
    Abstract: A waveform generating apparatus for driving a liquid crystal device has a memory for storing waveform data for designating a drive waveform of the liquid crystal device and duration data for designating a duration for which the drive waveform designated by the waveform data is to be supplied, and for outputting the waveform data and the duration data in accordance with an input address designation signal. The apparatus also has a macro decoder for receiving the waveform data output from the memory and a clock signal having a predetermined period and a predetermined phase, and outputting a plurality of drive waveforms designated by the waveform data from corresponding output terminals, thereby generating predetermined waveforms.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: April 4, 1989
    Assignees: Casio Computer Co., Ltd., Casio Electronics Manufacturing Co., Ltd.
    Inventors: Morio Ohta, Hideaki Inoue
  • Wrist watch
    Patent number: D300513
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: April 4, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Kaoru Tsukahara
  • Combined wrist watch and calculator
    Patent number: D300514
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: April 4, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Takashi Morishima
  • Wrist watch
    Patent number: D301015
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: May 9, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Toshio Nakai
  • Wrist watch
    Patent number: D301310
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: May 30, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Toshio Nakai