JPS53104258A - Object detector - Google Patents
Object detectorInfo
- Publication number
- JPS53104258A JPS53104258A JP1906977A JP1906977A JPS53104258A JP S53104258 A JPS53104258 A JP S53104258A JP 1906977 A JP1906977 A JP 1906977A JP 1906977 A JP1906977 A JP 1906977A JP S53104258 A JPS53104258 A JP S53104258A
- Authority
- JP
- Japan
- Prior art keywords
- pll circuit
- signal
- reception
- object detector
- frequencied
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE: To eliminate the effect of drift, always match transmission and reception frequencied, sharpen selection characteristics and detect objects by using the signal generated in a PLL circuit as ultrasonic transmission signal and locking the PLL circuit with the frequency of the reception signal thereof.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1906977A JPS53104258A (en) | 1977-02-24 | 1977-02-24 | Object detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1906977A JPS53104258A (en) | 1977-02-24 | 1977-02-24 | Object detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53104258A true JPS53104258A (en) | 1978-09-11 |
Family
ID=11989134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1906977A Pending JPS53104258A (en) | 1977-02-24 | 1977-02-24 | Object detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53104258A (en) |
-
1977
- 1977-02-24 JP JP1906977A patent/JPS53104258A/en active Pending
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