Voice actuated recording device having recovery of initial speech data

Abstract

Informational data is efficiently recorded on a recording medium in response to an input signal containing information and pauses of different intervals. Information following each pause is captured for recording and space occupied on the recording medium for recording of the pauses is minimized. A stream of input data corresponding to the input signal is supplied by operation of a controller selectively to a first buffer and a second buffer arrangement. The input signal is also coupled to a record signal generating circuit that produces a record signal in response to an input signal having information of a certain duration, and produces a no-record signal in response to a pause in the input signal of a determined interval. The controller operates to store the supplied data at selected addresses from an initial address to a last address of the first buffer before a record signal is produced, and to recirculate data storage from the initial address to the last address after data is stored at the last address and the record signal generating circuit continues to output a no-record signal. When a record signal is produced, data from the first buffer is read out for recording prior to reading out of data from the second buffer. The controller also deletes from the buffered data, before recording, data corresponding to a pause in the input signal for the determined interval needed for the record signal generating circuit to switch from a record to a no-record signal output.