1, "RF input interface", that is, commonly known as "cable TV interface". thisThe interface can receive TV programs provided by local cable TV operators by connecting the cable line of sight, and this interface is also the connection method used by the earliest broadcasting equipment, "recording (playing) video machine". RF RF terminal is the first appeared on the television, the original meaning of Radio Frequency (Radio Frequency).
2, RF input is the input interface of RF signals, which can access high-frequency audio and video signals, including the signal transmission signal of cable TV (the kind of signal that does not use the set-top box), and the signal line from the outdoor TV antenna and the RF signal from other audio and video equipment.
3, RF input interface is a radio frequency input interface. The details are as follows: Definition of the RF input interface The RF input interface is an interface used to receive radio frequency signals. In electronic devices, especially in the field of television and radio, this interface is widely used to receive wireless signals. It allows the device to capture RF signals from a distance and convert them into electrical signals that can be processed inside the device.
4, RF input interface usually refers to the RF input interface, used to connect the RF signal source to the device, such as TV, radio, tuner, etc. The RF input interface worksCoaxial Cable Connector is a variety of types of connectors, common including: **Coaxial Cable Connector (coaxial cable connector) ** : One of the common RF input interfaces is a coaxial cable connector, such as F, BNC and SMA.
5, RF is the radio frequency input socket, that is, the position of the antenna. AV input is also the audio and video signal input socket, connected to the set-top box, DVD player, video recorder or computer and other audio and video signals through the TV. AV output is an audio and video signal output socket used to connect a video recorder to record a television program, orThe power amplifier is connected to play through the speaker. Now there are HD interface, as well as video color difference interface, network cable interface, digital coaxial interface and so on.
1, wireless charger usage: the mobile phone standard charger and data cable connected to the wireless charger wireless charging rf, and then the mobile phone is/across the wireless charger baseLeft and right center position wireless charging rf, you can achieve wireless charging wireless charging rf, indicating light will have breathing effect wireless charging rf, 5 seconds after extinguishing, plug and play, convenient and quick.
2, vivo mobile phones can be wireless charging, but not all vivo support wireless charging. The current models that support wireless charging are: iQOO11Pro, X90Pro, X90Pro, XFold, iQOO10Pro, X80Pro Snapdragon, X80Pro Guet, XFold, XNote, iQOO9Pro, X70Pro, iQOO8Pro.
3, there is no news that the branch does not support reverse charging, but it should also be able to backcharge if it supports wireless. In the horizontal comparison, the 4500mAh 80W fast charge is not the top, but it is also at the middle level in the flagship. The 50W wireless charging is still very powerful, comparable to the Huawei p50pro, and it can be fully charged in about 1 hour.
4. vivoThe X100 supports wireless charging. vivo X100, a high-end smartphone under the vivo brand, is equipped with advanced wireless charging technology. This technology allows users to charge the phone's battery via a wireless charger without the need to plug in a physical charging cable, greatly improving the ease of charging.
1, wireless charger use method: the mobile phone standard charger and data cable connected to the wireless charger, and then put the mobile phone in the wireless chargerThe center position of the electrical base can realize wireless charging, the indicator light will have a breathing effect, and it will be extinguished after 5 seconds, plug and play, convenient and quick. 2, there are four main ways to achieve wireless charging, including the use of electromagnetic field interaction, radio wave transmission and other principles to achieve current transmission. Do these terms sound as confusing as reading a physics book? Let's read them one by one. The first is field-coupled charging. First, there are two sets of asymmetrical electric dipoles on the phone and charging device. When they are close together, they produce a coupling phenomenon and achieve the transmission of current.
3, the electromagnetic induction is the mostThe common way of wireless charging is to use the principle of electromagnetic induction to generate current through the induction of the primary and secondary coils, thereby transferring energy from the transmission end to the receiving end. This approach has been achieved by the Wireless Charging Alliance (Wireless? The Power? Consortium; WPC). At present, wireless charging is mainly realized in four technical ways: magnetic induction technology, magnetic resonance technology, microwave technology and electric field coupling technology. Among them, magnetic induction technology and magnetic resonance technology are the technologies that are basically used in the current mass production products.
1, the average time for the FCC to accept ID applications is 60 days. At the end of the process, the FCC will send the Original Grant of the FCC ID to the applicant. After receiving the certificate, the applicant can sell or export the corresponding products. At least one qualified prototype should be provided for each certified model.
2, FCCID certification is specifically for wireless products, the certificate is issued by the United States TCB agency,When applying for certification, enterprises need to apply for Code code first, certification companies issue test reports on product testing, and TCB agencies review and issue certificates. This cycle is relatively long, about 4 weeks.
3, first apply for an FRN, the applicant is the first time to apply for an FCC ID, you need to apply for a permanent Grantee Code; ID of the first application.
4, FCC Certification process the first Certification (that is, apply for FCC ID) ① by the customer to provide a complete test sample and completeAccessories, submit to our laboratory; If it is the first time to apply for an FCC ID, apply for an FCC Registration Number (FRN) at the same time.
2, May, Apple submitted a "wireless power system" patent to show this innovative idea. Unlike previous battery cases, this new design does away with the lightning protection connector in favor of two-way wireless charging technology. According to the patent, the new battery case will be equipped with two sophisticated "switching circuit" wireless charging coils, which means that it will not only be able to self-charge, but also be able to connect to the iPhone or other wireless device power for true wireless interaction.
3, Apple's new patent reveals the new possibility of wireless charging Recently, Apple Inc. submitted a new patent that has attracted wide attention in the industry. Unlike the common NFC technology on the market, Apple's patent seems to aim at the practical application and efficiency improvement of wireless charging technology.
4, the patent does not detail specific application scenarios, we can only expect Apple to reveal its actual use in a future release. Apple has always been, even after the iPhone 5 was questioned by the outside world lack of innovation, but its reality