Abstract: A step signal of which the period varies according to random data is derived from a step pulse generator, and is supplied to an address counter. By the output data from the address counter, an address of a waveform ROM is specified. From a waveform ROM, the waveform based on the random data is output in the form of a distorted waveform signal. Using this output signal of the distorted waveform, a cymbal sound, for example, is generated in a musical tone generator.

Abstract: A plurality of music number data records of several hundreds of music numbers are sequentially recorded on a magnetic tape, such as a compact cassette tape with a blank space therebetween. The recorded music number data records are continuously and randomly reproduced and stored in digital form in a RAM so as to continuously auto-play a plurality of music numbers by means of a tone generator.

Abstract: A digital pitch bend signal is supplied from an A/D converter to a first coefficient multiplier for every predetermined sampling period. An output of the first coefficient multiplier is added with an output of a second coefficient multiplier at an adder an output of which is delivered, as a digital pitch bend signal in the present cycle, from a buffer for the tone generation. The output of the adder is also fed back to an input of the second coefficient multiplier. Thus, from the buffer, a converted pitch bend signal having a value corrected during the respective sampling periods is produced.

Abstract: An electronic device enters pattern data upon activating a matrix of keys with a finger. A comparing section compares measured data in a counter (register C) for measuring the time interval from the release of a key till the depression of the next key, with a value set in a memory (register E) for storing a predetermined externally set time interval. When the measured data in the counter reaches the set value in the memory, a character recognizing section performs character recognition on the entered data.

Abstract: In an analog type timepiece, no electronic display is provided, and a plurality of alarm times are presettable. These preset alarm times can be easily recognized by using a simple hand. A reference signal oscillator, wave shapers, stepping motors, counters, coincidence detector and a buzzer are provided in the timepiece, thereby sequentially quick-shifting the hand mechanism to the predetermined alarm time positions.

Abstract: When autoplay data stored in a memory is readout at a predetermined regular rate, the timing of a key operation executed under the guidance of a melody guide function is compared to its corresponding regular timing, and the rate of the data readout from the memory is corrected according to the result of the comparison, the corrected readout rate being subsequently changed back to the initial rate. This control is effected by a CPU.

Abstract: In an LSP sound synthesizer, LSP transform parameters for three types of sounds are prestored: human, bird, and insect. For synthesis, the inverse transform is modified to increase the quality of each type of sound: a parameter converter uses a uniform-frequency distribution (of gain) for human, a mid-frequency concentration for bird, and a high-frequency concentration for insect sounds.

Abstract: A plurality of secret data for identifying IC cards is stored in a memory which is provided in an IC circuit incorporated in the IC card. When an IC card is supplied to an issuer from a manufacturer, a sealed sheet on which a production master key (PMK) data is printed is separately sent to the issuer from the manufacturer. The PMK data printed on the sealed sheet is supplied to the IC card to be compared with a PMK data stored therein. The entrance of a primary account number (PAN) data to the IC card is allowed only when a coincidence signal is obtained. An initialization personal identification number (IPIN) data is printed on a sealed sheet which is separately sent to a card holder from the issuer. At the card holder's stage, the IPIN data and an IPIN data stored in the IC card are compared with each other. The registration of the personal identification number to the IC card may be performed only when a coincidence signal is obtained.

Abstract: A recording apparatus is capable recording information by light passed through the light shutter. When the information is recorded on to a sheet of paper, the recording apparatus controls that area on the paper where information is to be recorded, and it comprises plural AND or OR gates, counters and flip-flop circuits. The area on the paper where the information is to be recorded is indicated by an effective writing signal applied from a means located outside and recording data applied from a means located outside is recorded on to the sheet of paper responsive to this effective writing signal.

Abstract: In a thermal printer control device, gate circuits are provided between elements of a thermal head and a print controller. After the print controller has supplied a print start signal to the thermal head, a print signal control circuit detects if a print stop signal has been supplied from the controller within a predetermined time and, if not, closes the gate circuits to prevent supply of the print signals to the thermal head elements.

Abstract: An electronic cash register of the invention can provide a correlation between sales of items or commodities. The electronic cash register has a PLU code data memory. The PLU code data memory stores PLU code data of items purchased by each customer. In order to calculate the number of customers who buy at least one of two items, a CPU retrieves the contents of the PLU code data memory for each customer. When it is determined upon this retrieval operation that a given customer buys at least one of the two items, the corresponding customer number count is incremented by 1. When the retrieval operation is completely for all the contents stored in the PLU code data memory, the desired information is calculated. Similarly, by counting the number of customers who buy one or both of the two items, and the like, correlations between sales of items can be determined.

Abstract: The image reproduction apparatus of the present invention can make a copy of images written or drawn on a board as well as a copy of images of an original provided on an original table. The image reproduction apparatus comprises a board portion and a copying portion. The optical information of images written or drawn on a board is supplied to the copying section through an optical system. The copying section moves between a position where the image reproduction is performed by the above optical information and a position where an ordinary copying of the original is performed. Thus, according to the present invention, the copying section moves between said two positions.

Abstract: A liquid crystal device of the present invention has a pair of liquid crystal substrates opposed to each other. A plurality of signal electrodes are formed on the inner surface of one of the paired liquid crystal substrates. Two scanning electrodes are formed on the inner suface of the other paired liquid crystal substrates. A liquid crystal material is interposed between the substrates. The liquid crystal material, signal electrodes and scanning electrodes form liquid crystal light shutters. The liquid crystal material is sealed only in a liquid crystal shutter section where the shutters are formed, so as to reduce capacitance between the signal and scanning electrodes. Materials which have a small dielectric constant are sealed in an area where the shutters are not formed between the signal and scanning electrodes.

Abstract: When an ending switch is operated on an electronic musical instrument while an automatic accompaniment is being produced, the pattern data of an automatic ending accompaniment is read out from a memory. Corresponding accompaniment sounds are generated from a loudspeaker to obtain the automatic ending.

Abstract: An input musical tone signal is amplified by a first VCA and then supplied to second and third VCAs. The second and third VCAs are controlled by sine-wave signals which have a 180.degree.-phase difference. Musical tone signals, which have been so controlled that a pan-pot may move right and left, are supplied to right and left loudspeakers. The first VCA is controlled by a sine-wave signal whose phase is different by 90.degree. from the phases of the signals supplied to the second and third VCAs. The volume of a composite musical tone made up of the tones generated by the loudspeakers is thereby controlled, thus also moving the pan-pot to the front and rearward.

Abstract: A radio wave data transmission apparatus comprises a plurality of switches, a data converter and a transmission section. The switches are selectively activated by a finger tip being moved as if to write a character, thereby providing data showing a character. The data converter converts this data into radio wave signals. These signals are transmitted from a transmission section.

Abstract: When the fill-in key and synchro start key are operated, an output of an inverter causes an AND gate to inhibit the resetting of a flip-flop by an output of a bar clock generator. In consequence, a fill-in rhythm is sounded continuously with a pattern selector driven by the set output of the flip-flop. When an accompaniment play key is operated at a desired instant in this situation, an output of a key depression detection circuit is fed through an AND gate and an OR gate to the reset input terminal of the flip-flop. As a result, the address of a ROM designated by the pattern selector, is changed to start sounding of normal rhythm.

Abstract: A television video signal A/D converter apparatus in a liquid crystal television receiver has an A/D converter for A/D converting a television video signal. Upper and lower reference potentials for determining an operating voltage amplitude are supplied to the A/D converter from a reference potential generator. The upper and lower reference potentials are divided at a given ratio by a resistor so as to fix an average potential of the television video signal at a constant value using the potential at the dividing point as a bias potential, and thereafter the television video signal is supplied to the A/D converter.

Abstract: A television video signal A/D converter apparatus has an A/D converter which samples a television video signal to A/D convert it in accordance with upper and lower reference potentials, and supplies the digital signals to a liquid crystal display device. The apparatus also has detectors which detect digital values of the digital signals from the A/D converter which exceed a predetermined value and are below another predetermined value, and which respectively correspond to the upper and lower reference potentials for A/D conversion by the A/D converter. The digital values exceeding and below the predetermined values are counted by a counter, and the upper and lower reference potentials are determined in accordance with the respective counts and are supplied to the A/D converter.

Abstract: In the recording apparatus of this invention, liquid crystal light shutter operates by using the double frequency drive. The double frequency drive utilizes signals of a high frequency f.sub.H and lower frequency f.sub.L. The dielectric anisotropy of liquid crystal matrial becomes positive in the case of the frequency f.sub.L lower than crossover frequency f.sub.C and becomes negative in the case of the frequency f.sub.H higher than the frequency f.sub.C. When the data signal including the signal of the frequency f.sub.L for a final period of a writing cycle Tw, is applied to write selection electrodes and data signal electrodes, liquid crystal light shutter is kept open for the final period of the writing cycle Tw, namely, opening or closing state of the shutter which is caused during a selection period can be eliminated.