Abstract: Behavior modification method involving the use of a portable random interval signal generator. One disclosed embodiment has an increasing probability of obtaining a signal through a time interval. In another disclosed embodiment the probability of obtaining a signal remains constant with time. The method involves analyzing behavior at randomly occurring intervals and in a preferred form recording instances of predefined behavioral classes on a pair of counters associated with the interval generator. Another method involves providing feedback to the subject in the form of reinforcing or punishing events.
Abstract: A reliable pulse source circuit utilizing two independent but synchronized pulse generators is disclosed. The pulse source circuit maintains output pulses even though one pulse generator fails regardless of the failure mode, i.e., whether the output of the failed generator is stuck high or stuck low. A toggle flip-flop responsive to the presence and absence of pulses from the two generators and its own state outputs controls gating circuitry to generate a sequence of output pulses wherein alternate output pulses occur in response to pulses of one generator and the remaining output pulses occur in response to pulses of the other generator, and if either generator fails, all output pulses occur in response to the pulses of the other generator.
Type:
Grant
Filed:
April 14, 1975
Date of Patent:
June 22, 1976
Assignee:
Bell Telephone Laboratories, Incorporated
Inventors:
Jeffrey Neil Denenberg, Kenneth Peter May
Abstract: Pulses generated by each of two normally synchronized oscillators are combined into a single pulse per cycle by feeding them to a monostable multivibrator and by differentiating the output signal of the monostable multivibrator.
Type:
Grant
Filed:
December 20, 1972
Date of Patent:
May 11, 1976
Assignee:
General Electric Company
Inventors:
Marvin F. Keeney, Jr., Alfred E. Relation
Abstract: Apparatus for selectively producing at a single output terminal one of a plurality of pulse repetition frequencies (PRF) in response to a set of control signals. After decoding the control signals, the apparatus contains networks for delaying and gating affected clock drive pulse repetition frequencies. Apparatus output is a train of pulses whose PRF varies from time to time, but within a relatively narrow spectrum, under control of the decoded control signals. Such output signals are particularly useful for driving logical components in a computer system with highly specialized and sensitive system specifications.