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An isomorphic keyboard is a musical input device consisting of a two-dimensional grid of note-controlling elements (such as buttons or keys) on which any given sequence and/or combination of musical intervals has the "same shape" on the keyboard wherever it occurs – within a key, across keys, across octaves, and across tunings.
The keyboard controller also handles PS/2 mouse input if a PS/2 mouse port is present. Today the keyboard controller is either a unit inside a Super I/O device or is missing, having its keyboard and mouse functions handled by a USB controller and its role in controlling the A20 line becoming integrated into the chipset's northbridge and then ...
Anti-sidetone circuitry in the telephone hybrid brought sidetone under control in the early 20th century, leaving enough feedback signal to assure the user that the telephone is working. [2] Almost all land-line (wired and wireless) telephones have employed sidetone, so it was an expected convention for cellular telephony, but is not standard.
Successor to RAP-1, with added cassette deck and second platter controller. DM 100 1985? 49/32 mini 210 Double deck sampling keyboard (mt-240 below with the 210 tone bank and a sk1 above). GZ 5 32 mini 0 AA (x4) out Midi master keyboard only. Has slider controls for velocity and octave, many buttons and two wheel controllers. KX 101 mini 9 4
accordion controller ? MIDI: Strap-on keyboard controller in the keytar style, with the chromatic buttons on the left-hand, and piano keyboard on the right-hand. [16] [17] 1993: Roland AX-1: controller: MIDI: 1994: Zendrum: percussion controller (MIDI) 1995 The Drumstick percussion controller (MIDI) used by E. Dr. Smith [18] c. 2000: Suzuki MK ...
A Fatar Studiologic SL 990-XP keyboard controller. Fatar is an Italian supplier of keybeds for digital pianos, synthesizers and organs, [1] based in Recanati, Italy. [2] The company was founded by Lino Ragni in 1956. [3] It patented its own hammer-action prototype in 1989 and introduced the conductive-rubber contact in 1990.
A keyboard matrix circuit is a design used in most electronic musical keyboards and computer keyboards in which the key switches are connected by a grid of wires, similar to a diode matrix. For example, 16 wires arranged in 8 rows and 8 columns can connect 64 keys—sufficient for a full five octaves of range (61 notes).
The ASCII keyboard controller resembles a standard GameCube controller pad stretched to accommodate an alphanumeric keyboard in the center. The keyboard requires the use of two controller ports and contains both Latin and Japanese hiragana characters.