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Combined radio pager/timepiece apparatus with receiver desensitization protection

  • US 4,845,485 A
  • Filed: 12/29/1987
  • Issued: 07/04/1989
  • Est. Priority Date: 12/29/1987
  • Status: Expired due to Term
First Claim
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1. In a combination radio pager/time piece device with moving hour, minute and second hands controlled by a stepping motor, an arrangement for preventing pager receiver desensitization during stepping motor operation, comprising in combination:

  • first means for momentarily activating the paging receiver at substantially regular intervals to determine if its address has been transmitted and for processing paging messages when its address has been received and detected;

    second means for supplying voltage pulses to the time piece stepping motor at regular intervals to advance the second hand; and

    third means coupled to said second means and responsive to said first means for inhibiting said voltage pulses to the stepping motor during those intervals when the paging receiver has been activated,said last named means further including fourth means for subsequently applying said inhibited voltage pulses on a sequential but accelerated basis upon deactivation of the paging receiver so as to bring the time piece up to current time status.

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