Patents Assigned to Casio Computer
  • Patent number: 4720717
    Abstract: A waveform forming device comprises a light source, a liquid crystal light shutter for passing or preventing the light of the light source and a driving circuit for driving a plurality of electrodes of the liquid crystal light shutter by using drive control signals including a signal of a high frequency f.sub.H and a signal of a low frequency f.sub.L. The frequencies f.sub.H and f.sub.L are respectively higher and lower than the frequency which makes a liquid crystal dielectric anisotropy zero. The waveform forming device has a ROM in which a plurality of basic control signals are stored, a counter for addressing a desired memory areas of the ROM and a waveform selector for selecting the basic control signals. The drive control signals are formed by combining the basic control signals, thereby to provide a desired drive pattern signal.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: January 19, 1988
    Assignees: Casio Computer Co., Ltd., Casio Electronics Manufacturing Co., Ltd.
    Inventors: Morio Ohta, Shizuo Tsuchiya
  • Patent number: 4719140
    Abstract: An IC card is disclosed, which comprises an IC pellet electrically connected to lead patterns via an anisotropically conductive adhesive layer. The IC pellet is also bonded to a print layer formed on an insulating film. A base sheet and another insulating film are laminated on the insulating film with the IC pellet sealed by resin in an IC pellet accommodation space formed in the base sheet.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: January 12, 1988
    Assignee: Casio Computer Co., Ltd.
    Inventors: Kazuya Hara, Kenji Rikuna
  • Patent number: 4718030
    Abstract: A device for computing interpolated values of a waveform generated in an electronic device, includes a memory for storing waveform data of a periodic sinusoidal wave, and an address signal generator for generating an address signal. The waveform data consists of sine wave data and cosine wave data. An address signal from the generator or a signal obtained by inverting the address signal (i.e., inverted address signal) is supplied to the memory. Upon receipt of the address signal, the memory reads out the sine wave data or the cosine wave data. Upon receipt of the inverted address signal, it reads out the remaining wave data. The wave data read from the memory is multiplied by a multiplier, which produced an interpolated value. An adder adds this value to the sine or consine wave data read out from the memory when the inverted address signal is supplied to the memory, and computes amplitude value data corresponding to the address signal.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: January 5, 1988
    Assignee: Casio Computer Co., Ltd.
    Inventor: Kenichi Tsutsumi
  • Patent number: 4717261
    Abstract: In a recording/reproducing apparatus, voice message information is encoded into voice message data by an encoder, and keyed in data information is converted into synthesizing speech data by a speech synthesizing circuit. Both the voice message data and the synthesized speech data are separately stored in a semiconductor memory. The speech data is independently read out from the semiconductor memory.
    Type: Grant
    Filed: January 8, 1986
    Date of Patent: January 5, 1988
    Assignee: Casio Computer Co., Ltd.
    Inventors: Kazunori Kita, Hideyuki Shoji, Toshiharu Aihara
  • Patent number: 4717911
    Abstract: A document creating and editing apparatus operates in such a manner that information before editing or proofreading registered in a document memory is left at the time of the editing or proofreading, while only the area of an edited or proofread portion is registered in the document memory, that an editing or proofreading pointer is generated simultaneously with the registration of the area of the edited or proofread portion, and that the respective lines of a document before or after the editing or proofreading are chained in single memory block unit.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: January 5, 1988
    Assignee: Casio Computer Co., Ltd.
    Inventors: Kaneo Matsuura, Masami Chikauchi
  • Patent number: 4716529
    Abstract: An electronic game apparatus has a handicap data memory for storing a plurality of types of handicap data corresponding to piece positions and the number of extra pieces displayed on a display unit, and a game level designation data memory for specifying a game level in accordance with the skill of the challenger. The game level is determined by a move guessing number, representing the number of further challenger moves that the computer can guess, and by the handicap data. When a game level is selected, the corresponding handicap data is read out from the handicap data memory to display the handicap data on a display unit under the control of a control section.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: December 29, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Jin Nakayama
  • Patent number: 4714980
    Abstract: An IC module including an integrated circuit chip and external connecting terminals connecting with the leads of the IC chip is accommodated in a cavity of a center sheet. First and second laminated structures, each of which is made of a plurality of sheets, are bonded to one and the other side surfaces of the center sheet. Each one of the first and second laminated structures has the same number of sheets and the same number of adhesive layers. Therefore, contraction and drawing forces produced by a change of environment and applied to the center sheet is counterbalanced, and warpage of the memory card is prevented.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: December 22, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Kazuya Hara
  • Patent number: 4711584
    Abstract: A movement of an electronic watch of analog display type is disclosed, which comprises a base plate made of a synthetic resin, a bearing plate made of a synthetic resin, and facing and spaced apart at a predetermined distance by a spacer from the baseplate and a step motor mounted on the baseplate, and including a rotor, a stator, and a coil. The rotation of the rotor of the motor is transmitted to hands, e.g., minute hand, through a gear train consisting of a plurality of gears, including those journaled between the baseplate and bearing plate. The gear train is made of a synthetic resin.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: December 8, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventors: Masayoshi Tanazawa, Masaru Shoji, Wataru Yamada
  • Patent number: 4712196
    Abstract: A data processing apparatus has a central processing unit. The CPU causes a memory to store for example input sales data in units of department sales and other items. When a power supply is turned off, a battery supplies back-up power supply voltage to the memory to retain the storage contents of the memory. When the output voltage from the battery is decreased to a value which disables back-up of the memory, is latch circuit is set. The latch circuit is held in the set state until it is forcibly reset. Even if the power source is turned on again, the CPU inhibits sales data input to the electronic register in response to an output signal from latch circuit, thereby preventing errors in the electronic register caused by invalid data in memory.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: December 8, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yoshinori Uesugi
  • Patent number: 4712243
    Abstract: The present invention provides a speech recognition apparatus for recognizing speech by converting voice signal into digital data. The apparatus performs a two-stage Dynamic Programming (DP) operation comprising a pre-stage and post-stage operation. The pre-stage DP operation is conducted with regard to the inputted digital voice data selected along a time axis and standard pattern data formed in advance in correspondence with voice and stored in a memory, thereby selecting several standard pattern data as the candidates. The post-stage DP operation is further conducted with regard to the inputted digital voice signals and the selected candidates of standard pattern data. Thus, the DP operation time of the present apparatus is shortened and a work area of a memory is decreased.
    Type: Grant
    Filed: May 8, 1984
    Date of Patent: December 8, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventors: Masao Ninomiya, Susumu Takashima, Kazumasa Fukushima, Masami Yuyama, Kazuyuki Kurosawa
  • Patent number: 4710826
    Abstract: A television video signal is compressed to the number of digital video signals sufficient for display of an image on a liquid crystal display. A television audio signal is also sampled and digitized. The television video and audio signals are combined to produce a digital television signal. The audio signal is sampled and digitized to produce the digital audio signal. The rotational speed of a rotary drum having record/playback heads in the digital television signal record/playback mode is different from that in the digital audio signal record/playback mode. By utilizing a digital audio tape recorder (DAT), the digital television and audio signals can be selectively recorded or played back.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: December 1, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Keiichi Sakurai
  • Patent number: 4710613
    Abstract: An identification system wherein validity between a first unit and a second unit is identified when the first unit is electrically communicated with the second unit. The first unit includes a generator for generating identification code information, a calculator for calculating, based upon the identification code information, an estimation time required for processing the identification code information in the second unit, a time counter for measuring an actual time required for completely processing the identification code information in the second unit, and an unit for identifying validity between said first and second units by comparing the actual processing time to the estimation processing time. The second unit includes at least a processor for processing the identification code information sent from the first unit.
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: December 1, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yoshimi Shigenaga
  • Patent number: 4700605
    Abstract: In an electronic keyboard musical instrument with a portamento or glissando play function, a touch response detector is arranged to detect a key touch response such as a depression speed or pressure of a key depressed on a keyboard. A musical tone generating device with a portamento or glissando play function is arranged to change a portamento or glissando time in response to the touch response of the depressed key.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: October 20, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Junichi Minamitaka
  • Patent number: 4700604
    Abstract: A master electronic musical instrument and a slave electronic musical instrument are interconnected through a cable and music playing data is transferred from the master electronic musical instrument to the slave electronic musical instrument. The slave electronic musical instrument includes a tempo signal generator. The slave electronic musical instrument receives music playing data and generates tones according to the generated tempo signal.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: October 20, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventors: Shigenori Morikawa, Hiroyuki Sasaki
  • Patent number: 4699037
    Abstract: An electronic musical instrument has a keyboard, a key depression speed detector and a glide pattern generator. When any key of the keyboard is depressed, the key depression speed detector detects the speed of depressing the key and produces a signal representing this speed. In accordance with this signal the glide pattern generator changes a reference glide pattern to a new pattern. The instrument generates a musical tone having the glide effect determined by the new glide pattern.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: October 13, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventors: Junichi Minamitaka, Tsunehisa Nogimura
  • Patent number: 4697931
    Abstract: A slidable member having an optical display unit is provided in an electronic timepiece case to be slidable to first and second stop positions respectively. The optical display unit is exposed to the outside of the timepiece case with a larger display area thereof when the slidable member has been slid to the second stop position than to the first stop position. Different data items are displayed on the optical display unit by first and second data supply means when the slidable member has been slid to the first and second stop positions respectively.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: October 6, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventors: Masayoshi Okuyama, Yukio Kido, Isao Mimura, Etsuro Nakajima
  • Patent number: 4697214
    Abstract: A tape loading device in which a tape is drawn from a tape cassette and wound on a rotary head cylinder, said device comprises a guide rail member formed substantially in an arcuate shape along the outer periphery of the rotary head cylinder having a guide slot including a curved point raised at the outside in the intermediate portion, first and second movable members each having at least one engaging portion guided to the guide slot of the guide rail member and movably supported at two front and rear positions in the guide slot of the guide rail member, first and second tape guide members aligned corresponding to the first and second movable members and introduced into the inside of the exposed tape of the tape cassette at the mounting time of the tape cassette, first drive mechanism coupled by the first movable member for transmitting a drive power for moving the first movable member from the initial loading position opposite to the mounting position of the tape cassette in the center of the guide slot to t
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: September 29, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Hirotaka Sasakawa
  • Patent number: 4697072
    Abstract: A card holder inputs personal identification number (PIN') data as secret data and transaction data (AMT) in an LSI in an identification card through a keyboard. The LSI calculates encrypted data (SAN) in accordance with the input data (PIN' and AMT). The encrypted data (SAN) is shown by the card holder to a cashier at a point-of-sales (POS) terminal. The POS terminal performs authentication of the card and the card holder in accordance with the encrypted data (SAN).
    Type: Grant
    Filed: August 27, 1985
    Date of Patent: September 29, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Shigeyuki Kawana
  • Patent number: D292678
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: November 10, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventor: Takashi Takeichi
  • Patent number: D293300
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: December 22, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventors: Takashi Nikaido, Yoshio Ono, Masao Wada