AMIMON is a developer and provider of Integrated Circuit (IC) as well as complete solutions for the rapidly growing wireless High-Definition audio-video market. AMIMON’s baseband and RF IC allow the assembly of complete high-quality, ultra-low latency and robust solutions for multiple devices and applications.
Amimon’s Video Modem solution utilizes both MIMO and OFDM technologies, combined with Joint Source Channel Coding (JSCC) capability to transmit Full-HD 1080p60 video resolution over a bandwidth of 40MHz or 20MHz. In fact, our latest 3rd generation baseband ICs allow for the delivery of 4K wireless video in amazing quality, while still keeping the zero latency (<1mS) capabilities.
The multiple inputs and multiple outputs, or MIMO, is the term used for multiple antennas at both the transmitter and receiver to improve communication bandwidth & performance. MIMO technology offers a significant increase in data throughput and link robustness without additional bandwidth or increased transmit power. It achieves this by spreading the same total transmit power over the antennas to achieve an array gain that improves the spectral efficiency (more bits per second per hertz of bandwidth) or to achieve a diversity gain that improves the link reliability (reduced fading). Because of these properties, MIMO is an important part of modern wireless communication standards, such as 4G, 3GPP Long Term Evolution, and WiMAX.
Traditional wireless video compression systems use source-channel separation method, which leads to modular system design allowing independent optimization of source and channel coders.
Amimon is using Joint-Source-Channel-Coding or JSCC approach, which has several profound advantages over the traditional approach. First, since the video components and their bit representation are not equally important, JSCC uses unequal error protection (UEP) while traditional systems provide equal protection to all bits. Thus, in traditional systems, the most significant bits of the important components are not protected enough, while the least significant bits of the less important video components are protected too much (and consequently waste channel resources).
The JSCC approach enables a far better utilization of the channel capacity and handles better channel interference. Traditional systems transmit packetized information at a rate that is below the worst-case channel capacity to avoid high bit error rate and frequent retry operations. The traditional communication methods using H.264 or H.265 compression are prone to errors and thus uses buffering to ensure retransition of data when the BER exceed a certain level. In addition, the communication channel use error correction overhead equality applied to all the transmitted bits unrelated to their visual importance, the use of JSCC eliminates these limitations.
The result of this unique video-modem approach is that errors in the wireless channel are not noticed up to a certain level as they only affect the less important components of the video, this in return results in a unique ability to send very high resolution with very high quality, increases robustness, without compromising on latency as the receiver can handle the information without the need to send acknowledges to the transmitter.