Autonomous radio controlled timepiece

Details Autonomous radio controlled timepiece Autonomous radio controlled timepiece

1990-10-18

1992-01-21

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

368 47, G08C 1900

Patent

active

050831232

ABSTRACT:
An autonomous radio controlled timepiece having a display for displaying information relative to receiving conditions to provide the consumer with increased assurance regarding the accuracy of the instantaneous time display. For this purpose, an analog or digital, optionally multidigit display element is provided, which displays supplemental information concerning the quality of reception, expressed as an indication of the period of time elapsed since the most recent monitoring and possible correction of the time display, the correction based on the information received by radio and decoded. The display element offers the lowest possible display value if the radio reception conditions are good enough that each actuation of the receiver leads to the acquisition of usable time information. The degree of certainty in the accuracy of the time display predisposes the timepiece to be used as an alarm clock in particular, in which case the alarm clock need only be equipped with setting elements for preselecting the time of alarm, for an alarm interruption or deactivation, and optionally for the switching of a supplemental display between displaying the preselected time of alarm and date information obtained from the radio information.

REFERENCES:
patent: 3795099 (1974-03-01), Tsuruishi
patent: 3937004 (1976-02-01), Natori et al.
patent: 4175377 (1979-11-01), Ichikawa
patent: 4255803 (1981-03-01), Sekine
patent: 4301524 (1981-11-01), Koepp et al.
patent: 4315332 (1982-02-01), Sakami et al.
patent: 4650344 (1987-03-01), Allgaier et al.
H. Effenberger, Inst. for Timepiece Technology and Precision Mechanics, Stuttgart University, "Microprocessor controlled radio timepiece with analog display", p. 104f, Radio timepieces, R. Oldenbourg Press, 1983.
"Radio controlled timpieces", G. Krug, Timepieces and Jewelry, 8/171, pp. 57-59.
"Uhren durch Funk gesteurert", VDI-Nachrichten, No. 3, January 21, 1977. (Partical translation included).

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