A Method on Generating Dual Tone Multiple Frequency Signal of Cordless Group Phone
Shen Ping;Zeng Yunhua;Wang Hui(Dept.of Physics,Jinan University,510632.Guangzhou)
This paper presents a method to generate the signal of dual tone multiple frequency in the development of the cordless group phone. The single-tone waves are generated by the way of software simulation, then they are sampled at proper speed and overlapped to form the signal of dual tone multiple frequency.The paper also discusses the theory,the design of hardware and software.Finally,the analyzing of resultS is given.
【CateGory Index】： TN916.9