A NEW RADIO RECEIVER SYSTEM FOR PERSONAL COMMUNICATIONS

A new radio receiver system for personal communications is described. This technology incorporates direct conversion into an integrated circ uit in such a way that the need for discrete IF filters is avoided. It also employs a second IF functional circuit that contains a carrier l eak detector and an adjustment-free system. The carrier leak detector suppresses the level of unwanted carrier leak and the adjustment-free system automatically compensates for any variation in circuit response that corrupts the performance of the receiver. The resulting design i s particularly suitable for use in wireless devices such as pagers and cordless telephones.