JPH01153785U - - Google Patents

Info

Publication number

JPH01153785U

JPH01153785U JP4975488U JP4975488U JPH01153785U JP H01153785 U JPH01153785 U JP H01153785U JP 4975488 U JP4975488 U JP 4975488U JP 4975488 U JP4975488 U JP 4975488U JP H01153785 U JPH01153785 U JP H01153785U

Authority

JP

Japan

Prior art keywords

intermediate frequency

audio

signal

circuit

detection

Prior art date

1988-04-13

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 7
• 230000005236 sound signal Effects 0.000 claims 2
• 239000000284 extract Substances 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2
• 230000003321 amplification Effects 0.000 description 1
• 238000003199 nucleic acid amplification method Methods 0.000 description 1