JPH01146638U - - Google Patents

Info

Publication number

JPH01146638U

JPH01146638U JP1988041943U JP4194388U JPH01146638U JP H01146638 U JPH01146638 U JP H01146638U JP 1988041943 U JP1988041943 U JP 1988041943U JP 4194388 U JP4194388 U JP 4194388U JP H01146638 U JPH01146638 U JP H01146638U

Authority

JP

Japan

Prior art keywords

signal

detection

sound

field strength

reception abnormality

Prior art date

1988-03-31

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

• Espacenet
• Global Dossier
• Discuss

• 238000001514 detection method Methods 0.000 claims description 11
• 230000005856 abnormality Effects 0.000 claims description 5
• 230000005684 electric field Effects 0.000 claims description 3
• 230000005236 sound signal Effects 0.000 claims description 2
• 230000005540 biological transmission Effects 0.000 claims 4
• 238000010586 diagram Methods 0.000 description 2
• 230000008054 signal transmission Effects 0.000 description 1