Patent application 14223445 (US), filed 2014-03-24
Publication number: US20150271614A1
Title: RECTIFIER CIRCUIT FOR MONITORING DC OFFSET OF A SINGLE-SUPPLY AUDIO POWER AMPLIFIER
CPC codes: H04R   3/007
H03F   1/52
H03F   3/181
H03F   3/185
H03F   3/20
H03F   3/45475
H03F   5/00
H03F2200/99
H04R   3/00
H04R   3/12
H04R2499/13
Office action: rejection, dated 2015-10-15
Rejection reasons: obviousness_103
Prior art cited: ref_id: 4887298
ref_type: patent
severity: obviousness
Final disposition: pending (2015-10-15)