|
|
re:5G 无线数字音视频传输模块介绍：...
5G 无线数字音视频传输模块介绍：
. K; \6 ?& |8 e
$ |' P% J8 y: t( a1 {- R/ P1. Key Features
* ]+ Y# E2 v5 F9 f" d
1) Complete transceiver design of wireless communication at 5 GHz.
; q; J6 Q, Z9 A
2) Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
/ s7 X7 v# H z: p7 j Cdifferent country spectrum requirements.
6 v" `8 Z6 ` b3) Dynamic frequency selection to resist interferences.
: @% W5 e& s1 B
4) Close-loop power control to minimize power consumption and be a friendly neighbor to
; G5 L% a/ `2 Q& L0 d. Nother WLAN networks at 5 GHz.
% B4 W3 T9 L% E N ? ]$ w4 X# y
5) Secure networking to assure privacy and content rights protection.
$ S% C; n& k" K8 ]+ r6) Supports most of the digital video formats at TS layer including MPEG-2, MPEG-4,
) A( t) _( ]3 \0 U2 MH.264 and VC-1 (WM-9).
. K2 I' }1 [% A' ^7) Supports point-to-point video connection with full QoS and point-to-multipoint video
/ P' [1 r& A0 n" R2 I' \$ i' _4 p9 ybroadcasting.
+ \, a1 w' S* Z; W* w! d, J
8) Configurable expansion I/O connector enabling easy integration with existing host
* \! W$ c3 p! p- s7 v. v
systems.
: b& c5 w/ s- W/ |, F: S
9) HCI interface to the host CPU to enable flexible application development at the host level.
) x) l! X. j/ }; B8 Y10) Transmission of IR control signals to the video source devices from the TV location.
7 E2 W5 k" |0 m5 H4 i+ W# ^2. System Diagram
8 Z2 \) V8 D; U3 T! xWAV3000 wireless module creates a proprietary 5 GHz wireless network for MPEG
" D# ^' s( G3 J$ l% N; \! b1 D
transport stream (TS) communication. The WAV3000 is a complete wireless transceiver module
* f) {2 ?3 D3 @that can be integrated as video sender and video receiver according to the host platform. When
4 q- g6 E: Y% A% |6 G. x: W, F) [
used as video sender, WAV3000 can be embedded in a video source device (DVD, VCR, PVR,
6 Q/ W/ Q; }1 z3 J- {) R0 H% ASTB, or PC); and when used as video receiver, WAV3000 can be embedded in a video display
: `# M4 f5 P+ ]3 K
device (TV, flat panel or video monitors). So a pair of the WAV3000 provides a complete,
4 l" @: O1 C* w% {glueless wireless connection from TS (of video source) to TS (of video display) with guaranteed
( l/ Y8 q* i8 z
QoS.
+ e/ [7 o- y* M; S% b
The WAV3000 includes a configurable expansion connector (CEC). All I/O signals can be
/ Z; D. z# w7 k2 E- W6 I5 urouted and configured through the CEC enabling easy integration with existing host systems.
* B. U: ]+ T# BFigure 1 gives a functional block diagram of the WAV3000 and associated personality
( l) M% c% c3 P! Zmodule (PM). The personality module intends to simulate the host product platform in which the
4 u! ]% t" p! r: I& D. a6 KWAV3000 will be integrated. The PM supports demo and evaluation of the WAV3000 with a
/ o& E' c* H1 q
variety of video sources (analog and digital) for different applications. It also provides
7 ~$ `4 P: `$ o% ]8 |1 Ycapabilities for test and debugging of the core module.
# J8 o: j8 P* I
3 Functional Specifications
The WAV3000 supports standard MPEG Transport Stream input and output in either
t9 U; e2 t3 rParallel or Serial mode.
The Tx unit transmits the compressed MPEG TS signal to the Rx unit over the air, using the
% d/ U# c1 s4 M2 u9 g0 TWiViTM wireless networking technology at 5 GHz.
Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
- j6 b8 Z( S k9 i, _+ udifferent country spectrum requirements.
The system support data rates from 6 Mbps to 60 Mbps.
The system supports video bit rates from 3 Mbps to 45 Mbps.
Proprietary radio resource control with dynamic frequency selection (DFS) and close-loop
+ P- m, R. b' ?+ G+ j
power control (CLPC).
Overall video propagation delay of less than 30 ms.
Receive sensitivity is –86 dBm for video rate of 6 Mbps, and –78 dBm for video rate of 20
% s+ Q/ H& g4 q' B$ X6 aMbps.
9 N% L' N) z# Y6 B7 y4 System Security
, v+ m% n' ?0 f1 [
The communication is authenticated and the media stream is encrypted to assure for
4 s% {) Z# R5 {1 q4 Qprotection of copyrighted material. Flexible pairing procedure between each Tx Unit and Rx Unit
; Z# @) D: ^- ~% X5 c$ s
ensures private communications between each pair of units. This also allow for coexistence of
+ Z* G, F7 O. ]multiple pairs of simultaneous operations without cross talk.
/ l* p- } M; b/ M8 d+ @ 此主题相关图片
5 B { Q5 ], V3 ^/ r
& m* Q! Z8 \/ c< |
|
IP卡
狗仔卡
发表于 2007-2-5 06:13:22
显身卡
楼主
