Abstract: A display controller which can display a cursor on either of a CRT display or a liquid crystal type display device is described. The liquid crystal type display device is a type that has an upper and lower display blocks which are scanned substantially in parallel. This display controller allows the display position of the cursor to be designated in the same manner, independent of the type of display device used. The display controller operates in a time sharing manner, alternately on the upper and lower display blocks of the liquid crystal device. Two groups of data corresponding to these upper and lower blocks are formed and are supplied to the liquid crystal display device substantially in parallel. X and Y coordinate positions of the cursor position are also stored. The cursor pattern signal for the liquid crystal display device is also stored in a time shared manner.

Abstract: An electronic musical instrument comprises: a keyboard circuit for generating a pitch data signal which designates the note name of a musical tone to be produced; a speech signal generator for generating a speech signal which tells in human voice the name of the designated musical tone; multiplexed processing circuit for time-divisionally processing the pitch data signal and the speech signal; and sound signal producing circuit for producing the musical tone and the human voice in accordance with the processed output from the multipled processing circuit. Thus the instrument speaks the names of the tones as it produces the musical tones.

Abstract: An image processing apparatus includes frame memories for storing information of an image to be displayed; a block memory for dividing the information stored in the frame memories into a given number of information blocks and storing the divided information blocks; a microcomputer circuit for automatically determining a desired value of each of LEVEL and WIDTH according to given contents of the divided information blocks; and an image emphasis circuit for window-processing information of the image to be displayed according to the determined value of each of the LEVEL and WIDTH.

Abstract: In an X-ray diagnostic apparatus, there is additionally provided an aspect ratio conversion circuit in a video processor. A video signal derived from an X-ray TV camera for an R/F table system having an aspect ratio e.g., (1:1) is converted into a corresponding digital video signal. The digital video signal is alternately stored in two buffer memories in synchronism with a predetermined clock pulse, which accordingly may change the original aspect ratio (1:1) into a new one, i.e., (3:4). Then the video signal processed under the new aspect ratio is displayed on the monitor which has its own aspect ratio (3:4) different from the original aspect ratio of the TV camera.

Abstract: Object detecting apparatus for use, for example, upon a mobile robot to detect objects or obstacles such that the robot may navigate clear of such objects or obstacles includes a source of light for projecting a light beam (7) convergingly toward an axis (9) so as to intersect the axis. The light beam (7) is rotated about the axis (9) within a circular locus (10) while the predetermined converging angle of the beam (7) is maintained constant with respect to the axis (9) so as to generate a light beam detecting surface (8). A condensing lens (2) and light detector (3) are coaxially disposed upon the axis (9) along with the circular locus (10) of the light beam (7) so as to define a viewing field or volume (5). An object-to-be-detected (6) may therefore be detected when the same is illuminated by the projected light beam (7) and its envelope surface (8), and the light reflected from the object (6) is transmitted back to the lens (2) and light detector (3).

Abstract: A frequency divider which divides clock pulses to obtain the clock frequency of a desired dividing ratio comprises a binary counter, cycle data forming circuit and inhibit circuit to which the dividing ratio is fed in the form of the dividing ratio data.The counter counts the clock pulses, and the cycle data forming circuit converts the count value of the binary counter to a cycle data in which a certain single bit only becomes a logical state "1" and the rest of the bits are a state "0". The bit which becomes "1" in the cycle data is uniquely determined by the count value. Further, each bit of the cycle data becomes "1" in proportion to the weight of the each bit. With the cycle data being thus formed, the dividing ratio data is simplified.The inhibit circuit receives the cycle data and the dividing ratio data to suspend the counting operation of the binary count if the bit of the dividing ratio data corresponding to the bit of the cycle data whose state is "1" is also "1".

Abstract: This electronic musical instrument with automatic accompaniment system comprises means for dividing each note by time division timing, means for extracting a timing equivalent to the order indicated by pattern signals from the timings corresponding to the predetermined note, and means for producing a musical tone of note corresponding to the extracted timing. The automatic accompaniment system may be applied for automatic arpeggio performance.

Abstract: The tone production system for an electronic musical instrument comprises depressed key detection means for outputting pulses at a timing corresponding to a key depressed by time division timings assigned to each note, a shift register for shifting successively said pulses outputted from said depressed key detecting means in synchronism with said time division timing, key data forming means for taking out each output pulse of predetermined plural stages of said shift register in accordance with a desired type of chord, musical tone production means for producing each of plural musical tone signals of notes corresponding to pulse generation timings in accordance with each pulse taken out by said key data forming means.

Abstract: A chord generating apparatus of an electronic musical instrument is provided with a selector which selects a single key among a plurality of depressed keys, a detector for detecting a chord type according to types of keys other than the selected key, and a musical tone signal forming circuit for forming a musical tone regarding a chord determined in accordance with outputs of the selector and detector.

Abstract: This electronic musical instrument comprises means for selecting one of a plurality of performance modes and musical tone production means having tone production channels less than the number of keys. Tones are produced through said channels based on the time division multiplex key data which are set according to the depressed status of all key in the different manner according to the selected performance mode of the mode selecting means.

Abstract: The electronic musical instrument is provided with a tone production means having tone production channels less than the total number of keys, a performance mode change detecting means, and a means for controlling tone production assignment of the tone production channels.The tone production assignment is controlled by depressed keys to one of the detecting means to produce a tone from one of the channel groups grouped according to the output of the detecting means. The selected tone production channel corresponds to the key group which the depressed keys belong to.

Abstract: An electronic musical instrument is of a type in which a particular note tone and tones corresponding to the remaining notes among depressed keys are alternately and repeatedly produced in accordance with tone production timing signals having a predetermined period. The tone production timing signals are produced by frequency dividing tempo pulses generated from a tempo pulse oscillator. An alternate production control is conducted by gating alternately signal of the particular note tone and signals of other tones and delivering to a sound system. The period of the tone production timing signals can be controlled by a circuit which detects depression of plural keys.