Егор Андреевич Самардакевич

In phase-shift keying (PSK) is a method of digital communication in which the phase of a transmitted signal is varied to convey information. The simplest PSK technique is binary phase-shift keying. This method uses two opposite signal phases broken up timewise into individual bits, or binary bits. The state of each of these bits is determined according to the state of the preceding bit. If the phase does not change, the signal state stays the same. This is sometimes called biphase modulation.

One of the types of phase modulation, in which the phase of the carrier oscillation changes abruptly depending on the information message. Represents a family of modulations such as BPSK, 4PSK, QPSK and others.

Bloody is a subsidiary of A4TECH for the production of computer peripherals.

Bloody is a subsidiary of A4TECH for the production of computer peripherals

Defender is an international manufacturing company. We manufacture items that surrounds you at home and work: all consumer electronics, peripherals, gaming products, and accessories that you use every day. Many times a day.

Defender's main offices and logistics centers are located in Estonia and China. While developing our representative offices' network in European countries, we can work with distributors in 20 European Union and the CIS countries. The service centers of Defender operate in many cities of Europe and Asia.

Eastern Times Technology Co., Ltd was established in 1996, the top 5 factory for Mouse and keyboard in China. We have a professional R&D teams with 15 good experienced engineers and more than 10 years professional QC team , over 1400 employees in total , offering a one - stop production service to meet your various needs.

Eastern Times Technology Co., Ltd is the owner of Redragon which is high-value brand for gaming peripheral, dedicated to providing global customers a high-performance gaming products. As the leading company with 20 years manufacturing experienced, Redragon innovated in world first-class industrial design and quality, with strong R&D and global sales team devoting, its aim to bring best service and quality products.

Redragon sales map covers North America, Europe, South of Africa, Asia and Middle East for over 30 countries, Design with the international standard packaging, and the multi-language inquiries for end user, it is your best choice and a reliable friend on your desk.

DEXP is a Russian company that manufactures machinery. The company was founded in 1998 in Vladivostok and began its activity with the assembly of desktop PCs, as well as professional system integration services for business.