초록 ▼

A rotary head, magnetic tape, digital signal recording apparatus in which the sampling frequency of digital information signals to be recorded cannot be completely divided during the encoding process by the frequency of a unit of an error correcting code consisting of a plurality of samples or the l

A rotary head, magnetic tape, digital signal recording apparatus in which the sampling frequency of digital information signals to be recorded cannot be completely divided during the encoding process by the frequency of a unit of an error correcting code consisting of a plurality of samples or the like includes circuitry for setting a numerical value of 2 or more which is an integer value near a quotient when the sampling frequency is divided by the frequency of the unit; comparing the count value of the number of input samples to be recorded with a numerical count value of 2 or more; determining the number of samples included in the unit by the output of the comparison and accordingly controlling an address in a memory of the recording apparatus.

대표청구항 ▼

A digital signal recording apparatus for recording signals which have been digitally sampled at a first predetermined frequency and subject to error correction encoding into units having a second predetermined frequency and in which the first predetermined frequency cannot be evenly divided by the s

A digital signal recording apparatus for recording signals which have been digitally sampled at a first predetermined frequency and subject to error correction encoding into units having a second predetermined frequency and in which the first predetermined frequency cannot be evenly divided by the second predetermined frequency, wherein the recording apparatus is of the type which includes an analog to digital converter for converting analog input signals into digital information signals, an encoder for error encoding the digital information signals, memory means for storing the product of the error encoding, an address generator for controlling the write and read operations of the memory means, and recording means for recording the output data of the encoder onto a magnetic tape by means of rotary magnetic heads, the digital signal recording apparatus comprising: integer setting means for setting an integer count value (NB) of at least 2 which is an integer value near the quotient obtained by dividing the first predetermined frequency by the second predetermined frequency; first counter means for counting the number of input samples to be recorded and outputting a corresponding first count signal (NA); means for comparing the count value (NA) of the first count signal (NA) and the count value (NB) selected from the numerical values of 2 or more set by the integer setting means and outputting a decision signal (SJ); word number control means supplied with the decision signal (SJ) for determining the number of samples to be included in the error correcting code unit in response to the decision signal (SJ); and means controlled by the word number control means for controlling the address to be addressed in the memory means by the address generator.