Patent application 13844602 (US), filed 2013-03-15
Publication number: US20140270208A1
Title: MONITORING OF SPEAKER IMPEDANCE TO DETECT PRESSURE APPLIED BETWEEN MOBILE DEVICE AND EAR
CPC codes: H04R   3/005
H04R2410/05
H04R2499/11
Office action: rejection, dated 2015-10-16
Rejection reasons: anticipation_102
obviousness_103
indefiniteness_112
Prior art cited: ref_id: 20110116643
ref_type: patent
severity: novelty_destroying
ref_id: 20110116643
ref_type: patent
severity: novelty_destroying
ref_id: 20100040245
ref_type: patent
severity: novelty_destroying
ref_id: 20100322430
ref_type: patent
severity: novelty_destroying
Final disposition: granted (2015-10-16)