Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1983-03-15
1986-12-02
Sloyan, T. J.
Communications: electrical
Audible indication
Percussion-type sound producer
340347AD, 340347DA, 340347M, 358138, 364179, 364572, 364576, 364726, 381 31, H03K 1302
Patent
active
046268278
ABSTRACT:
A data compression system comprises an analog-to-digital converter for quantizing the analog signal at a first sampling frequency into a series of digital samples and a memory for storing the digital samples. A control circuit generates a sampling datum indicating a variable sampling frequency lower than the first sampling frequency as a function of the instantaneous frequency of the analog signal for selecting digital samples from the memory, reads the selected digital samples out of the memory means in response to the sampling datum, and forms the sampling datum and the selected digital samples into a data set. A series of data sets may be transmitted to a receiving end of the system or stored in a recording medium. The sampling datum is used to indicate the point at which the digital sample is converted to a corresponding analog value.
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Kitamura Masatsugu
Takekura Hiroyuki
Tanaka Mitsuaki
Sloyan T. J.
Victor Company of Japan , Limited
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