The world is becoming more wireless. The traditional connection for short-haul applications is the use of cables. But this method breeds a lot of problems, such as restricting mobility, and then the messy cables are scattered throughout the room (such as home or office), which is not only inconvenient but also affects the environment. To succeed in today's highly competitive marketplace, modern short-range communication devices require wireless means to easily and quickly connect to various resources. One solution for short-range wireless connectivity is to transmit/receive different types of signals using radio frequency (RF) bands that are specifically allocated by government agencies. For example, RF solutions for certain consumer electronics applications, such as PC networking, are very popular and reliable wireless data connections. However, on the other hand, RF-based communication solutions for real-time, streaming, home entertainment applications such as audio and video are vulnerable to interference from other wireless RF systems such as WLAN (802.11), Bluetooth, and cordless phones. . All of these RF-based applications use the free but crowded 2.4GHz or 5/5.8GHz ISM RF band, which is susceptible to co-channel interference. In addition, the home entertainment industry has created barriers to RF-based devices. In this area, the connection must maintain ultra-low latency to ensure 'lip sync' between the video image produced by the AV source and the wirelessly connected audio reproduction device (ie, the speaker). In fact, RF is well suited for wireless data links, allowing data to be retransmitted in the presence of interference, but it is much more difficult to achieve reliable transmission of uncompressed hi-fi audio streams. In addition, RF for mobile phones, Bluetooth headsets, etc. is also suspected to cause harm to human health if used frequently, and the professional medical literature is now more and more frequently discussed. The use of infrared (IR) light as a wireless communication medium is also very popular. We often see IR ports on mobile phones, PDAs, and other consumer (CE) devices. It is reported that the current base of devices with IR ports has reached nearly 1 billion. At the same time, infrared remote control is the communication standard for indoor wireless control. Despite this, traditional IR solutions require line-of-sight and directionality between the transmitter and the receiver, which greatly limits their application and market appeal. The IR port's data transfer rate can be quite high, but the range is very short, only 10cm-100cm for IrDA devices; or the distance can be longer, but the data transfer rate is very low (such as remote control applications). To overcome these problems with existing IR solutions while avoiding RF communication problems, Infra-Com has developed products based on diffuse infrared (DIR) technology. DIR utilizes the ability of infrared light signals to bounce back to avoid the line-of-sight and directional requirements of traditional IR solutions. With DIR, the information generated by the transmitter that loads the infrared signal is "bounced" throughout the enclosed space (such as a room, office, laboratory) and then collected by a specially designed, highly sensitive receiver. DIR technology expands the range of applications of infrared products, thereby broadening the range of applications. Infra-Com has created the first truly low-cost technology platform for short-range, all-round wireless optical communications. Infra-Com designed a unique ASIC group (ie chipset) based on the DIR scheme. IrGate relies on IR's reflection and scattering from ceilings, walls and other surfaces to establish high-bit wireless communication (see Figure 1). Figure 1: IrGate can work in an enclosed space in an all-round way. It has no line-of-sight requirements, and it has a large launch angle and does not need to aim at the receiver for transmission. The IrGate transmitter uses an IR LED array for three-dimensional wide-area emission in an enclosed space, and the IrGate receiver uses a highly sensitive receiver array to detect the residual infrared energy emitted and reproduce the original signal, even in the light path. Has been heavily absorbed and attenuated. Infra-Com sells IrGate technology in the form of a small ASIC chipset, which is the first in its class. The benefits of this highly flexible solution have been tested and validated by mainstream vendors in the consumer electronics industry, which has also introduced the first samples embedded in IrGate. The inherent advantages of IrGate include: 1. Low cost—Infrared solutions like the baseband type of IrGate can reduce the cost of the manufacturing process. Infra-Com is setting the path for further miniaturization, which will result in a significant reduction in the cost per link. 2. Reliable high bandwidth - IrGate now has a raw bit rate of 22.5 Mbps (further development up to 50 Mbps); it can operate under different ambient lighting conditions (ie natural and artificial light sources) and provides an inherent division, ie The IrGate-based communication/network enables adjacent space to be free from co-channel interference caused by "bandwidth multiplexing." 3. Avoid RF technology issues—IrGate and RF devices do not interfere with each other; it avoids RF signal delays in audio/video streaming applications; IR signals cannot pass through walls and work only in closed spaces, ensuring privacy And security. 4. No frequency allocation or regulatory issues – IrGate is a global, non-regulatory technology. It does not require government frequency allocation or any specific classification; the "green" IR signal cannot penetrate human tissue and does not harm the human body. 5. Can be modified for consumer electronics applications - IrGate is implemented in a small chipset that can be embedded in many different types of consumer electronics; providing 'plug and play' for ODM/OEM with a very concise reference design 'System implementation; its digital ASIC (ie, the interface with the "outside") uses industry-standard interfaces (such as I2S), directly connected to existing equipment, so it can retain the most commonly used system architecture. Infra-Com's current application focus is on the wireless audio market, which has accumulated a wealth of valuable technology, product and market experience in this area. Infra-Com will continue to move forward with a series of pre-defined next-generation development steps that make IrGate more flexible and more suitable for this particular market. These initiatives will reduce manufacturing costs while improving functionality and performance. The company's customers will be aware of the reduction in system prices unless they embed multiple different peripheral components in order to add more functionality to the IrGate IC. 2.1 IrGT800 chipset series for wireless audio communication The IrGT800 chipset family for wireless audio communications provides a high quality and easy to implement solution for markets that are currently using inconvenient cable products or low quality RF solutions that are susceptible to interference as described above. Infra-Com recognizes the complex challenge of creating a commercially viable low-cost semiconductor solution that must be able to wirelessly connect rear surround speakers in a closed space/room with multiple audio source devices, such as a home theater system. , digital TVs and portable music devices (such as iPod accessories). Infra-Com has successfully shipped the IrGT801A chipset, the industry's first chipset with high bit rate DIR wireless communication capabilities. The IrGT801A's infrared communication distance is 25-50 feet (depending on environmental conditions and system structure), no line-of-sight or directional requirements, and the raw data rate (ie, the data rate before modulation, FEC, framing, etc.) is 20 Mbps. The IrGT801A has the advantage of ultra low latency (100 microseconds), making it ideal for high-fidelity (hi-fi) audio applications. In addition, the IrGT801A comes with a simple hardware reference design that makes it easy to implement a full wireless communication link for audio applications without the use of software and firmware. The overall system and links may include high quality wireless surround sound, subwoofers or other speakers. Moreover, the integration of the IrGT801A, like all other IrGate-based ASICs, benefits from the small form factor of the chipset. The main specifications of the IrGT801A are as follows: 1. Embedded I2S interface. I2S is a recognized audio industry standard—all audio ICs on PCBs used in DVDs, HTIB systems, CDs, speaker amplifiers, etc., all using this versatile simple standard. 2. The IrGT801A's transmit (Tx) and receive (Rx) terminals both contain a digital IC and an analog IC. The digital IC is used as a modem/interface function for the entire chipset, while the analog IC is part of the analog optical front-end subsystem. 3. Supports up to 4 uncompressed (24-bit) digital audio channels (speakers). 4. Online Forward Error Correction (FEC), Auto Mute, Auto Speaker Shutdown, User Indication LED. 2.2 Enhanced IrGT821 IC Series Infra-Com's IrGT821 next-generation digital audio IC is also available in high-volume production, offering more advanced features than the IrGT801A family. It also adds a wireless I2C control channel and four wireless audio channels to control remote peripheral resources (such as DACs, Class D amplifiers, digital signal processors) in wireless speakers. The IrGT821 IC includes the IrGT821ADT (Tx) and IrGT821ADR (Rx) sections, which are connected to the IrGT801A's LED driver transmitter and analog receiver IC, as shown in Figure 2: Figure 2: Block diagram of the IrGT821 system. The IrGT821ADx digital chipset has the following enhanced features: 1. Receiver side wireless volume / mute control. 2. Higher audio sample rate - up to 96kHz, while the existing IrGT801A has an audio sample rate of only 48KHz. 3. Support hardware and software mode - IrGT821 supports separate hardware working mode (similar to IrGT801A) and software working mode. In software mode, the IrGT821ADT transmitter IC can receive various control commands from external devices (such as MPEG ICs or MCUs) and wirelessly transmit to the IrGT821ADR receiver IC to control remote peripheral audio connected to the speaker-side IrGT821ADR device. Device. 2.3 Low cost IrGT851 IC series In order to achieve cost reduction commitments, Infra-Com also plans to develop the IrGT851 IC family based on a standard cell ASIC solution. Although the IrGT801A and IrGT821A use structured ASIC technology, the IrGT851 will leverage the ASIC-based COT (customer-owned tools) mass production business model. This process allows customers to significantly reduce costs. The IrGT851A will include a set of enhanced features and performance beyond the IrGT821A chipset. Infra-Com is planning to develop a low-power version of IrGate technology, the IrGT700 series, which can be embedded in battery-powered mobile and handheld applications. The development of new semiconductor chipsets that meet the above definition is intended to drive the development of ultra-low cost and simple products. Wireless headsets and battery-powered wireless speakers are just two small examples of large-scale market applications seeking high-quality, low-power wireless solutions Electronic Cigarette,Largest E-Cig Oem,China E-Cig Oem,Vape Pen Oem,Vape Device Oem Shenzhen MASON VAP Technology Co., Ltd. , https://www.cbdvapefactory.com
