|600,000 yen(around the 1981 time)
The PCM cassette recorder which unified an advanced
electronic-circuitry technology and video-tape mechanism.
Code Modulation: pulse code translation) is adopted as a sound-recording scheme.
At PCM, the original sound wave is changed and recorded on the signal of a
binary digit in the it1 of a sampling -> quatization -> it1. The failure
is suppressed by changing to the signal which has simplified the complicated
music signal by this.
With this recording-in-PCM scheme, it does not
generate, but modulation distortion and a wow and flutter realize the flat
frequency characteristic, a reduction of a large dynamic range and
higher-harmonic distortion, etc., and make the high-definition Recording play
By the stream composition which unified the PCM processor and
VTR, recording in PCM and a play are easily possible.
Moreover, since signal
register form is based on "EIAJ" specification, it has the recording-in-PCM
system and interchangeability of this specification.
Two large-scale LSI
is adopted as PCM digital signal processing.
MN6601 is LSI for a sound
recording which accumulated about 10,000 elements, adds error detecting code and
a correction sign to the digital data which was carried out as for A? D
conversion, and sends them as a video data.
Moreover, MN6602 is LSI for a
play which accumulated about 15,000 elements, performs composite-izing of the
reproduced PCM digital signal, and bug fixing, and supplies them to a digital
analog converter as a serial data.
Exclusive LSI is developed and
adopted in A/D, the D-A conversion, or the off-site logic circuitry.
micro-disk6192 is carried in MA6183 and a digital analog converter at the analog-to-digital converter, and it was developed by the hardness thin-film-IC
technology and the precision trimming technology.
Moreover, off-site logic
circuitries, such as a timing generator circuit of A/D and a D/A converter, have
realized 1 chip-ization using the high-speed and high-density IIL by original
new process development. It is a large-scale bipolar large-scale integrated
circuit called the gate number 1100 [ about ] accelerated using the shot key
composite at the buffer part with the exterior using the high-density product
line by two layers of aluminum.
The tapes operation control part
investigated facility and the control intensive design by full logic control is
used for it.
The right-and-left standalone version is adopted as a
recording-level coordination. Moreover, the fader of right-and-left[ one ]-izing
which can perform fade-in/fadeout easily is carried.
Moreover, if the ff key
is pressed, pressing the play key, a tape speed moves forward by 8X, and a queue
control is possible for it. If the rew key is pressed, pressing the play key
similarly, it retreats by 8X and a review control is possible.
jump function which jumps over a play garbage is carried and a jump mark lever
is turned ON, a jump multiple asynchronously communicating hosts is recorded
only in the meantime, it will jump over the fraction henceforth automatically, and it will begin a play.
Moreover, if a clear lever is pushed and it
reproduces, a jump multiple-asynchronously-communicating-hosts signal will be
The search function which discovers the arbitrary location
of a tapes is carried.
If a searchmark lever is lowered at the time of a
Recording play, a search multiple asynchronously communicating hosts will be
recorded on a tapes. If the one push of the lever is carried out, a search
multiple asynchronously communicating hosts will be automatically recorded for
70 seconds, light emitting diode lights up, if the search key is pressed, it
will become a queue control mode automatically, and a tapes stops in the
location marked automatically.
Moreover, if the play key is pressed after
pressing the search key, it will go into a play status automatically from the
location of a search multiple asynchronously communicating hosts.
multiple asynchronously communicating hosts is also eliminable by pushing a
clear lever like jump mark and reproducing.
The locate functionality which can take out arbitrary locations with a memory operation of a tape counter and the locate key is carried.
If the button of the locate section is
made into a memory location, the counter location in the time point will be
recorded and memory will be carried out, a tapes will stop in the counter
location in the case of ff or rew. Furthermore, if the play key is pressed,
pressing the key of ffrew, it will be in a play status from a memory location
The liquid crystal tape counter and the peak level
indicator are carried.
The play data check functionality which the quality
of a peek hold or a using tapes understands at a glance is carried in the level
The digital in/out termination in which digital dubbing is
possible is carried.
The termination for a remote control and the
microphone input plug on either side are carried.
A timer sound
recording is possible.
VHS tapes one mechanism
|A/D, a D/A converter and LSI for off-site circuitries
||Digital-audio cassette recorder
||An EIAJ stereo technical committee and the
video-technology committee file
It is based on STC-007" noncommercial use
PCM encoder decoder."
||14-bit linear line
||14-bit linear line
||VHS specification video cassette
|Tape recording system
||The PCM signal which carried out NTSC TV
conversion to signals is recorded based on VHS specification.
||A maximum of 2 hours (at the time of a
|The number of audio channels
||2ch (L/R stereo)
||0.01% or less (1kHz, 0dB)
||86dB or more
||Line: 30mV (-15dB) / 50kohm
Digital: 1 Vp-p/75ohms (video-system format)
|An Output voltage/impedance
Digital: 1 Vp-p/75ohms
||Width 430x height 278x depth of 346mm