Patent ID: 7136420
Filing Date: 2006-11-14
Classification: H04B

Abstract:
1. A method of recording a one-bit-per-sample digital signal which comprises: (a) providing a pulse code modulation recorder capable of recording on a record medium a plurality of channels of pulse-code-modulated signals each having a cycle constituted of a predetermined number of bits; (b) inputting a one-bit-per-sample signal in the form of a stream of bits, such that each sample of an analog signal is expressed by either of two binary digits; (c) dividing the bit stream of the one-bit-per-sample signal into a series of segments each constituted of a submultiple of the predetermined number of bits of each cycle of the pulse-code-modulated signals, wherein each segment comprises the same number of bits as the number of bits constituting each sample of the pulse-code-modulated signals; and (d) introducing each predetermined number of bit segments of the one-bit-per-sample signal into the pulse-code modulation recorder during each cycle of the pulse-code-modulated signals thereby to be recorded on the record medium.