using transmission of interrupted, pulse-modulated waves (determination of distance by phase measurement G01S15/32)

Introduced: January 1980

Title

Titles differ between systems:

IPC: using transmission of interrupted, pulse-modulated waves

CPC: using transmission of interrupted, pulse-modulated waves (determination of distance by phase measurement G01S15/32)

Full Title

Full titles differ between systems:

IPC:

Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems > using reflection of acoustic waves > Systems determining position data of a target > Systems for measuring distance only > using transmission of interrupted, pulse-modulated waves

CPC:

Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems > using reflection of acoustic waves (G01S15/66 takes precedence) > Systems determining the position data of a target > Systems for measuring distance only (indirect measurement G01S15/46) > using transmission of interrupted, pulse-modulated waves (determination of distance by phase measurement G01S15/32)

Of 5 combined children, 3 exist in both systems.

2 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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G01S 15/101 CPC only CPC only
G01S 15/102 +4 CPC CPC only CPC only
G01S 15/12 wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse since 1980 IPC+CPC Available in IPC and CPC
G01S 15/14 wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo reception since 1980 IPC+CPC Available in IPC and CPC
G01S 15/18 wherein range gates are used since 1980 IPC+CPC Available in IPC and CPC