Title:
【発明の名称】分周比切り替えが可能な分周装置
Document Type and Number:
Japanese Patent JPH0828659
Kind Code:
B2
Abstract:
A variable frequency dividing circuit according to this invention switches a frequency division ratio immediately after a neew frequency division ratio has been input, and then performs a frequency dividing operation without discarding already counted values. This frequency dividing circuit generates an error signal if a newly input frequency division ratio differs from the previous frequency division ratio and the already counted value is larger than the new frequency division ratio. Furthermore, the frequency dividing circuit performs forcibly a frequency division completion processing according to the consecutively input frequency signal.
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Inventors:
TOMOSAWA KIKUO
Application Number:
JP31143189A
Publication Date:
March 21, 1996
Filing Date:
November 29, 1989
Export Citation:
Assignee:
OKI ELECTRIC IND CO LTD
International Classes:
H03K23/64; H03K23/66; (IPC1-7): H03K23/64; H03K23/66
Attorney, Agent or Firm:
Takashi Kumagai (1 outside)
Next Patent: 数値設定器