At+that+time
131That Certain Summer — is a 1972 American television movie directed by Lamont Johnson. The teleplay by Richard Levinson and William Link was the first to deal sympathetically with homosexuality. Produced by Universal Television, it was broadcast as an ABC Movie of the… …
132Time-division duplex — (TDD) is the application of time division multiplexing to separate outward and return signals. It emulates full duplex communication over a half duplex communication link. Time division duplex has a strong advantage in the case where the… …
