US PATENT SUBCLASS 379 / 79
.~.~.~ With specified call initiated cycle control circuitry

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

67.1  DF  AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS {13}
68  DF  .~ Dynamic audio signal recording or reproduction {4}
70  DF  .~.~ Call intercept or answering {7}
79.~.~.~ With specified call initiated cycle control circuitry {4}
80  DF  .~.~.~.~> Voice signal presence responsive
81  DF  .~.~.~.~> Call termination responsive (e.g., hang-up)
82  DF  .~.~.~.~> Having specified call initiation (e.g., ringing) responsive circuitry
83  DF  .~.~.~.~> Structural detail of storage medium drive

DEFINITION

Classification: 379/79

With specified call initiated cycle control circuitry:

(under subclass 70) Subject matter including circuitry to control the actuation or deactuation of the recorder or reproducer in response to a telephone system condition related to an incoming call.

(1) Note. For classification herein, either details of the circuitry or response to a particular condition other than call receipt is required. Mere nominal recitation of circuitry responsive to call receipt is not classifiable herein, as such response is necessarily inherent in a call answering or intercepting device.

(2) Note. The "call initiated cycle" is a sequence of reproducing and recording mode of the recording and reproducing device.