蓝牙耳机编程流程-handesetprogrammersguide.docx

HANDESET Programmers Guide In troducti on Headset profile is used to en able wireless conn ectivity among Bluetooth en abled Headsets, PCs and the cellular pho nes. Fig-1: Headset device components and usagesee n 萌iow Con cepts USAGE （用法） Two use cases are presented here for understanding the AG and HS roles. Note that these cases are not comprehe nsive. Incoming call Incoming call arrives at a cellular pho ne conn ected to a mobile n etwork. The cellular phone acti ng as an AG in dicates this call arrival to a Headset. This is typically perceived as a ring on the HS. The user accepts the incoming call, by press ing a butt on on the HS. The AG on receiving this acceptanee routes the audio data from the network to HS. Outgo ing call An user dials a nu mber using a cellular pho ne (AG). Upon successful connection, the user by press ing a butt on on the HS in itiates a tran sfer of the audio data from the cell phone to the HS. Note: Headsets typically have a user in terface by which inten ti ons such as call accept, call tran sfer are in dicated to the AG. The word butt on used above is a simile for any such user in terface IMPORTANT : Although the word call is frequently used in this document, it shall be read as Audio conn ecti on. This is because the AG may treat the HS as the in put or output audio port for purposes other tha n call process ing (such as tun es, beeps, alarms, etc..). 2.2控制路径和数据路径 1, A Con trol path typically tran smits comma nds and resp on ses relat ing to a profile and the Data path is typically used to tran smit voice data 2A Con trol path should be established prior to the establishme nt of the Data path. 3 The existe nee of a Data path is opti onal 4. In the con text of the Headset profile comma nds and resp on ses relati ng to call accepta nee, audio data tran sfer, volume con trol etc.. are excha nged betwee n the AG and HS over the Con trol path and the Data path is used to tran sfer audio (voice) data betwee n the AG and the HS MODULE The